1280 Massachusetts Avenue
Cambridge, MA 02138
Business voice: (617) 576-2760
Business fax: (617) 576-3609
Tech support phone: (617) 576-3066
Tech support fax: (617) 354-3068
Tech support email: techsupport@motu.com
Web site: www.motu.com
Page 2
SAFETY PRECAUTIONS AND ELECTRICAL REQUIREMENTS
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR OTHER MOISTURE.
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
WARNING: DO NOT PERMIT FINGERS TO TOUCH THE TERMINALS OF PLUGS WHEN INSTALLING OR REMOVING THE PLUG TO OR FROM THE OUTLET.
WARNING: IF NOT PROPERLY GROUNDED THE MOTU 828 COULD CAUSE AN ELECTRICAL SHOCK.
The MOTU 828 is equipped with a three-conductor cord and grounding type plug which has a grounding prong, approved by Underwriters' Laboratories and the Canadian Standards Association. This
plug requires a mating three-conductor grounded type outlet as shown in Figure A below.
If the outlet you are planning to use for the MOTU 828 is of the two prong type, DO NOT REMOVE OR ALTER THE GROUNDING PRONG IN ANY MANNER. Use an adapter as shown below and
always connect the grounding lug to a known ground. It is recommended that you have a qualified electrician replace the TWO prong outlet with a properly grounded THREE prong outlet. An adapter
as illustrated below in Figure B is available for connecting plugs to two-prong receptacles.
Figure AFigure B
Grounding lug
Screw
3-prong plug
3-prong plug
Make sure this is connected
to a known ground.
Grounding prong
Properly grounded 3-prong outlet
Two-prong receptacle
Adapter
WARNING: THE GREEN GROUNDING LUG EXTENDING FROM THE ADAPTER MUST BE CONNECTED TO A PERMANENT GROUND SUCH AS TO A
PROPERLY GROUNDED OUTLET BOX. NOT ALL OUTLET BOXES ARE PROPERLY GROUNDED.
If you are not sure that your outlet box is properly grounded, have it checked by a qualified electrician. NOTE: The adapter illustrated is for use only if you already have a properly grounded two-prong
receptacle. Adapter is not allowed in Canada by the Canadian Electrical Code. Use only three wire extension cords which have three-prong grounding type plugs and three-prong receptacles which
will accept the MOTU 828 plug.
IMPORTANT SAFEGUARDS
1. Read instructions - All the safety and operating instructions should be read before operating the MOTU 828.
2. Retain instructions - The safety instructions and owner's manual should be retained for future reference.
3. Heed Warnings - All warnings on the MOTU 828 and in the owner's manual should be adhered to.
4. Follow Instructions - All operating and use instructions should be followed.
5. Cleaning - Unplug the MOTU 828 from the computer before cleaning and use a damp cloth. Do not use liquid or aerosol cleaners.
6. Overloading - Do not overload wall outlets and extension cords as this can result in a risk of fire or electrical shock.
7. Power Sources - This MOTU 828 should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your location, consult your local power company.
8. Power-Cord Protection - Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them. Pay particular attention to cords and plugs, convenience receptacles, and
the point where they exit from the MOTU 828.
9. Lightning - For added protection for the MOTU 828 during a lightning storm, unplug it from the wall outlet. This will prevent damage to the MOTU 828 due to lightning and power line surges.
10. Servicing - Do not attempt to service this MOTU 828 yourself as opening or removing covers will expose you to dangerous voltage and other hazards. Refer all servicing to qualified service personnel.
11. Damage Requiring Service - Unplug the MOTU 828 from the computer and refer servicing to qualified service personnel under the following conditions.
a. When the power supply cord or plug is damaged.
b. If liquid has been spilled or objects have fallen into the MOTU 828.
c. If the MOTU 828 has been exposed to rain or water.
d. If the MOTU 828 does not operate normally by following the operating instructions in the owner's manual.
e. If the MOTU 828 has been dropped or the cabinet has been damaged.
f. When the MOTU 828 exhibits a distinct change in performance, this indicates a need for service.
12. Replacement Parts - When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions
may result in fire, electric shock or other hazards.
13. Safety Check - Upon completion of any service or repairs to this MOTU 828, ask the service technician to perform safety checks to determine that the product is in safe operating conditions.
ENVIRONMENT
Operating Temperature: 10°C to 40°C (50°F to 104°)
AVOID THE HAZARDS OF ELECTRICAL SHOCK AND FIRE
Do not handle the power cord with wet hands. Do not pull on the power cord when disconnecting it from an AC wall outlet. Grasp it by the plug.
INPUT
Line Voltage: 100 - 120 volts AC, RMS (US and Japan) or 220 - 250 volts AC, RMS (Europe). Frequency: 47 - 63 Hz single phase. Power: 7 watts maximum.
CAUTION: DANGER OF EXPLOSION IF BATTERY IS REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BYMANUFACTURER. DISPOSE OF USED BATTERY ACCORDING TO MANUFACTURER’S INSTRUCTIONS.
Page 3
CHAPTER
Contents
Quick Reference: MOTU 828 Front Panel
5
Quick Reference: MOTU 828 Rear Panel
6
7
Quick Reference: MOTU 828 Console
About the MOTU 828
9
13
Packing List and
Windows System Requirements
15
IMPORTANT! Run the MOTU 828 Software
Installer First
17
Installing the MOTU 828 Hardware
MOTU 828 Console
31
ASIO-compatible Audio Software
39
Windows Multimedia-compatible Audio
45
Software
Performance Tips & Troubleshooting
49
Index
53
3
Page 4
About the Mark of the Unicorn License Agreement and
Limited Warranty on Software
TO PERSONS WHO PURCHASE OR USE THIS PRODUCT: carefully read all
the terms and conditions of the “click-wrap” license agreement presented to you
when you install the software. Using the software or this documentation indicates
your acceptance of the terms and conditions of that license agreement.
Mark of the Unicorn, Inc. (“MOTU”) owns both this program and its documentation.
Both the program and the documentation are protected under applicable copyright,
trademark, and trade-secret laws. Your right to use the program and the
documentation are limited to the terms and conditions described in the license
agreement.
Reminder of the terms of your license
This summary is not your license agreement, just a reminder of its terms. The
actual license can be read and printed by running the installation program for the
software. That license agreement is a contract, and clicking “Accept” binds you and
MOTU to all its terms and conditions. In the event anything contained in this
summary is incomplete or in conflict with the actual click-wrap license agreement,
the terms of the click-wrap agreement prevail.
YOU MAY: (a) use the enclosed program on a single computer; (b) physically
transfer the program from one computer to another provided that the program is
used on only one computer at a time and that you remove any copies of the
program from the computer from which the program is being transferred; (c) make
copies of the program solely for backup purposes. You must reproduce and include
the copyright notice on a label on any backup copy.
YOU MAY NOT: (a) distribute copies of the program or the documentation to
others; (b) rent, lease or grant sublicenses or other rights to the program; (c)
provide use of the program in a computer service business, network, time-sharing,
multiple CPU or multiple user arrangement without the prior written consent of
MOTU; (d) translate, adapt, reverse engineer, decompile, disassemble, or
otherwise alter the program or related documentation without the prior written
consent of MOTU.
MOTU warrants to the original licensee that the disk(s) on which the program is
recorded be free from defects in materials and workmanship under normal use for
a period of ninety (90) days from the date of purchase as evidenced by a copy of
your receipt. If failure of the disk has resulted from accident, abuse or misapplication of the product, then MOTU shall have no responsibility to replace the disk(s)
under this Limited Warranty.
THIS LIMITED WARRANTY AND RIGHT OF REPLACEMENT IS IN LIEU OF,
AND YOU HEREBY WAIVE, ANY AND ALL OTHER WARRANTIES, BOTH
EXPRESS AND IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
LIABILITY OF MOTU PURSUANT TO THIS LIMITED WARRANTY SHALL BE
LIMITED TO THE REPLACEMENT OF THE DEFECTIVE DISK(S), AND IN NO
EVENT SHALL MOTU OR ITS SUPPLIERS, LICENSORS, OR AFFILIATES BE
LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING
BUT NOT LIMITED TO LOSS OF USE, LOSS OF PROFITS, LOSS OF DATA OR
DATA BEING RENDERED INACCURATE, OR LOSSES SUSTAINED BY THIRD
PARTIES EVEN IF MOTU HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS
WHICH MAY VARY FROM STATE TO STATE. SOME STATES DO NOT ALLOW
THE LIMITATION OR EXCLUSION OF LIABILITY FOR CONSEQUENTIAL
DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
Update Policy
In order to be eligible to obtain updates of the program, you must complete and
return the attached Mark of the Unicorn Purchaser Registration Card to MOTU.
Mark of the Unicorn, Inc. and S&S Research (“MOTU/S&S”) warrant this
equipment against defects in materials and workmanship for a period of NINETY
(90) DAYS from the date of original retail purchase. This warranty applies only to
hardware products; MOTU software is licensed and warranted pursuant to
separate written statements.
If you discover a defect, first write or call Mark of the Unicorn at (617) 576-2760 to
obtain a Return Merchandise Authorization Number. No service will be performed
on any product returned without prior authorization. MOTU will, at its option, repair
or replace the product at no charge to you, provided you return it during the
warranty period, with transportation charges prepaid, to Mark of the Unicorn, Inc.,
1280 Massachusetts Avenue, MA 02138. You must use the product’s original
packing material for in shipment, and insure the shipment for the value of the
product. Please include your name, address, telephone number, a description of
the problem, and the original, dated bill of sale with the returned unit and print the
Return Merchandise Authorization Number on the outside of the box below the
shipping address.
This warranty does not apply if the equipment has been damaged by accident,
abuse, misuse, or misapplication; has been modified without the written
permission of MOTU, or if the product serial number has been removed or defaced.
ALL IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO NINETY (90) DAYS FROM THE DATE OF THE
ORIGINAL RETAIL PURCHASE OF THIS PRODUCT.
THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND
IN LIEU OF ALL OTHERS, ORAL OR WRITTEN, EXPRESS OR IMPLIED. No
MOTU/S&S dealer, agent, or employee is authorized to make any modification,
extension, or addition to this warranty.
MOTU/S&S ARE NOT RESPONSIBLE FOR SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF
WARRANTY, OR UNDER ANY LEGAL THEORY, INCLUDING LOST PROFITS,
DOWNTIME, GOODWILL, DAMAGE OR REPLACEMENT OF EQUIPMENT
AND PROPERTY AND COST OF RECOVERING REPROGRAMMING, OR
REPRODUCING ANY PROGRAM OR DATA STORED IN OR USED WITH
MOTU/S&S PRODUCTS.
Some states do not allow the exclusion or limitation of implied warranties or liability
for incidental or consequential damages, so the above limitation or exclusion may
not apply to you. This warranty gives you specific legal rights, and you may have
other rights which vary from state to state.
MOTU, AudioDesk, MOTU, Mark of the Unicorn and the unicorn silhouette logo are
trademarks of Mark of the Unicorn, Inc.
This equipment has been type tested and found to comply with the limits for a class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause interference to radio
or television equipment reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by any combination of the following measures:
• Relocate or reorient the receiving antenna
• Increase the separation between the equipment and the receiver
• Plug the equipment into an outlet on a circuit different from that to which the receiver is connected
If necessary, you can consult a dealer or experienced radio/television technician for additional
assistance.
PLEASE NOTE: only equipment certified to comply with Class B (computer input/output devices,
terminals, printers, etc.) should be attached to this equipment, and it must have shielded interface
cables in order to comply with the Class B FCC limits on RF emissions.
WARNING: changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user's authority to operate the equipment.
Page 5
Pro-level gear
Line guitar (with heavy distortion)
Synths, CD players,
consumer electronics, etc.
Line guitar (clean)
FireWire is a “plug-and-play”
protocol. That means that you
can turn off the MOTU 828
and turn it back on without
restarting your computer.
Keep in mind, however, that if
you wish to change the MOTU
828’s settings in the MOTU
828 Console, the MOTU 828
needs to be plugged in and
switched on.
These three input trim knobs provide up to 40dB of gain for
inputs 3 through 8 (in pairs). These inputs don’t have mic
pre-amps, so they are best for line-level inputs such as
and other studio gear. If your input is hot (+4dB), start
with the trim knob at about 10 or 11 o’clock. If you’re
dealing with a synth or consumer audio product, try 2
ing to the level meters in your
o’clock. Then calibrate the input using the level meters in
inputs 3-8
audio software.
your host audio software to make sure the level isn’t
clipping (clipping is bad and causes unwanted distortion).
These lights indicate
signal presence on the
digital inputs and
These lights indicate signal
presence on the analog
inputs and outputs. Their
outputs. Their threshold is
around -42 dB. They do
threshold is around -42 dB.
They do not indicate clipping
not indicate clipping in
any way; use your host
audio software level
in any way; use your host
audio software level meters
to calibrate input and output
meters to calibrate inputs
and outputs.
levels.
These lights indicate the global sample rate at which the
MOTU 828 is operating. Use the MOTU 828 Console to set
the sample rate or to choose an external clock source,
Condenser microphone
(with 48V phantom power)
Example: Octavia MC01
from which the sample rate will be derived. When no
sample clock is currently present, these two lights flash
rapidly. For example, if you’ve set the MOTU 828 to slave
Dynamic microphone
(no phantom power)
to an external clock, such as ADAT, but there is no clock
signal currently being detected, these lights will flash.
Example: Shure SM57
Quick Reference: MOTU 828 Front Panel
0
This switch provides
phantom power for
microphones on inputs
1 and 2. Up is on.
The MOTU 828 lets you monitor any
analog input (or input pair) via the main
outs (and the headphone out). This knob
controls the level of this monitored signal.
This is a standard quarter-
inch stereo headphone jack.
Its output matches the main
outs on the rear panel. The
volume knob controls both
the headphone out and the
main outs.
These two trim knobs provide up to 40dB of gain for inputs 1 and
2. Because inputs 1 and 2 also have microphone pre-amps, you
can plug just about anything into them: a microphone, a guitar, an
synth — you name it.
If you plug in a condenser microphone (with phantom power),
start with the trim knob at about 12 o’clock. For a dynamic mic (no
phantom), try 3 o’clock. Then calibrate the input using the level
meters in your host audio software to make sure the level isn’t
clipping (clipping is bad and causes unwanted distortion).
Approximate trim positions on
inputs 1 and 2 for a microphone.
Start with these positions and
then adjust according to the level
inputs 1-2
meters in your audio software.
Page 6
This foot pedal input is for
These Neutrik™ jacks for inputs 1 and 2 accept
either a mic (XLR) cable or a quarter-inch plug.
The MOTU 828’s eight analog outputs are gold-
plated, balanced +4dB TRS (tip/ring/sleeve)
Macintosh operation only.
Each is equipped with a mic preamp. 48V
phantom power can be supplied via the front-
panel switch. Since these inputs have mic
preamps, they are ideal for microphones,
quarter-inch connectors that can also accept
an unbalanced plug. They are equipped with
24-bit, 128x oversampling converters.
These two balanced, quarter-inch jacks
serve as the MOTU 828’s main outputs.
You can connect them to a set of powered
studio monitors and then control the
volume from the front panel “Main”
volume knob.
The signal that comes out of these
outputs is a mix of analog outputs 1 and 2
and any live CueMix™ Plus input that you
have chosen to monitor from a MOTU 828
input (or input pair). To hear disk tracks in
your audio software on these main outs,
assign the disk tracks (and master fader)
to Analog Outs 1-2.
guitars and other low-level sources.
Analog outputs 1 and 2 are
duplicated on the MOTU
828’s main outputs (to the
right), as well as the front
panel stereo headphone
jack. However, these outputs
do not include any live
CueMix™ Plus audio.
These six analog inputs are gold-plated,
balanced TRS (tip/ring/sleeve) quarter-
inch connectors that can also accept an
unbalanced plug. The front panel trim
allows you to adjust them for either
+4dB or -10dB input signals. They have
24-bit, 64x oversampling converters.
These inputs (3 through 8) do not have
microphone preamps, so they are best
used for synthesizers, drum machines,
effects processors, and other instru-
ments. However, because the trim knobs
on the front panel give you 40 dB of
input gain adjustment, you can probably
get away with plugging in a guitar
(depending on the guitar).
Quick Reference: MOTU 828 Rear Panel
0
If you are using the MOTU 828 with an ADAT, use this
standard ADAT SYNC INPUT to connect the MOTU 828
to the end of your ADAT sync chain. For example, if
you have three ADATs, chain the ADATs in the usual
fashion (SYNC OUT to SYNC IN, etc.), and then
connect the last ADAT’s SYNC OUT to this SYNC IN. This
connection allows you to make sample-accurate
audio transfers between AudioDesk (or other
Connect the MOTU 828 to
the computer here using
the standard 1394
FireWire cable provided
with your MOTU 828.
These jacks provide stereo, 24-bit
S/PDIF digital input and output.
These optical digital I/O connectors can be
connected either to an ADAT-compatible
“lightpipe” device (such as a digital mixer) or
to a S/PDIF optical (“TOSLink”) compatible
device, such as an effects processor or DAT
machine. Be sure to set the format in the
MOTU 828 Console software. (see “Optical
input/output” on page 34 for details.) ADAT
optical supplies eight channels of 24-bit
digital I/O, and TOSLink is stereo.
One special note: you can choose independent
formats for the optical IN and OUT. For
example, you could choose ADAT for the
optical IN (for, say, eight channels of input
from your digital mixer) and S/PDIF for the
optical OUT (for, say, your DAT machine).
sample-accurate software) and the ADATs. If you have
a MOTU MIDI Timepiece AV or Digital Timepiece, make
it the master of the ADAT SYNC chain so that you can
control everything from AudioDesk (or your other
MIDI Machine Control compatible software).
Page 7
0
Quick Reference: MOTU 828 Console
CHAPTER
Determines the master clock source for your entire
MOTU 828 system. If you’re just using the analog
ins and outs, set this to ‘Internal’. The other settings
are for digital transfers via S/PDIF or external
synchronization via the ADAT SYNC in port.
Choosing a smaller setting here reduces the delay you
may hear when listening to live input that you are
running through effects plug-ins in your software. But
lower settings also increase the strain on your computer.
For details, see “Samples Per Buffer” on page 33.
Check this option if the audio software you are using
with the MOTU 828 does not support Windows WDM
drivers and instead only supports legacy MME (Wave)
drivers. When checked, this option makes all of the
MOTU 828 inputs and outputs available to legacy
Wave-driver compatible audio software.
How to access these settings
The MOTU 828 Console gives you complete
control over the settings in your MOTU 828 hard
disk recording system. There are several ways to
access these settings. But the settings are the
same, regardless of how you access them.
■
From the Windows Start menu, choose
Programs>MOTU>MOTU 828 Console.
■
From within Cubase™, go to the Audio
System Setup window and click on the
ASIO Control Panel button.
■
From within other applications, refer to
their documentation.
Choose the global sample rate for the system here.
Choose the desired optical format you’d like to
use for the optical input and output. Note that
they don’t have to be the same.
This is the MOTU 828’s no-latency CueMix™
Plus monitoring feature. The inputs you
choose here will be mixed with the main outs
and can be controlled with the ‘monitor’
volume knob on the front panel.
Audio System Setup in Cubase VST
7
Page 8
8
Page 9
CHAPTER
1
About the MOTU 828
OVERVIEW
The MOTU 828 is a computer-based hard disk
recording system for Mac OS and Windows that
offers 18 simultaneous inputs and outputs. The
MOTU 828 consists of a standard 19-inch,
single-space, rack-mountable I/O unit that
connects directly to a computer via a standard
IEEE 1394 FireWire™ cable. The MOTU 828 offers
the following:
■
Eight 24-bit analog inputs and outputs
■
Eight-channel ADAT optical digital I/O
■
S/PDIF (optical and RCA)
■
Two extra analog main outs
■
Two mic preamps on inputs 1 and 2
■
48V phantom power for both mic inputs
■
ADAT sync in
■
Headphone jack
■
Main volume knob (for headphone + main outs)
■
CueMix™ Plus no-latency monitoring
■
Individual front-panel input trim knobs
With a variety of I/O formats, mic preamps,
no-latency monitoring of live input and synchronization capabilities, the MOTU 828 is a complete,
portable “studio in a box” when used with a
Macintosh or Windows computer. A WDM driver
is included for audio applications running under
Windows 2000, Windows Me or
Windows 98/Second Edition. Also included is an
ASIO driver for multi-channel operation with any
Windows audio software that supports ASIO
drivers.
THE MOTU 828 I/O REAR PANEL
The MOTU 828 rear panel has the following
connectors:
■
Eight gold-plated, balanced +4dB quarter-inch
(TRS) analog outputs (with 24-bit converters)
■
Six gold-plated, balanced +4 dB quarter-inch
(TRS) analog inputs (with 24-bit converters)
■
Two additional analog mic/line inputs on
Neutrik combo (XLR/quarter-inch) connectors
equipped with mic pre-amps
■
One set of ADAT optical ‘light pipe’ connectors
(8 channels of ADAT optical I/O), individually
switchable to optical S/PDIF (‘TOSLink’)
■
RCA S/PDIF in/out
■
Two balanced +4 quarter-inch TRS main
outputs with volume knob (on the front panel)
■
One 9-pin ADAT SYNC IN connector
■
One 1394 FireWire jack
18 simultaneous inputs and outputs
All MOTU 828 inputs and outputs can be used
simultaneously, for a total of 18 inputs and outputs
(8 analog + 8 ADAT optical + 2 RCA S/PDIF).
Analog
The analog inputs are equipped with 24-bit, 64x
oversampling A/D converters. The analog outputs
have 24-bit 128x oversampling D/A converters. All
audio is carried to the computer in a 24-bit data
stream. The eight analog outputs are on balanced
TRS +4dB quarter-inch jacks, as are the six
quarter-inch input jacks below them. All of these
jacks can also accept unbalanced plugs.
9
Page 10
All analog inputs can be gain-adjusted with the
trim knobs on the front panel. The range of these
knobs is approximately 40 dB.
Mic inputs
Analog inputs 1 and 2 are each equipped with a mic
preamp on a Neutrik™ combo-style connector that
accepts either a mic (XLR) cable or a cable with a
quarter-inch plug. Defeatable 48V phantom power
is supplied by a front panel switch.
Main Outs
For main stereo output, analog outputs 1 and 2 are
duplicated as a stereo pair of balanced, +4dB
quarter-inch TRS jacks. If an input (or input pair)
is being monitored via the MOTU 828’s CueMix™
Plus monitoring feature, the monitored signal is
summed with the main outs. You can control the
volume of the main outs with the front panel
volume knob. You can independently control the
CueMix Plus monitored signal with the Monitor
level knob on the front panel.
Optical
The MOTU 828 optical jacks support two digital
audio formats: ADAT and S/PDIF. The ADAT
optical format provides eight channels of 24-bit
digital audio at either 44.1 or 48 kHz. The optical
S/PDIF format (often referred to as
supplies stereo S/PDIF input or output.
S/PDIF
The MOTU 828 rear panel provides S/PDIF input
and output in two different formats: RCA “coax”
and optical “TOSLink”. The RCA jacks are
dedicated to the S/PDIF format. The TOSLink
jacks can be used either for the TOSLink format or
for ADAT optical. In addition, the optical input and
output jacks can operate independently. For
example, the optical input can be set to TOSLink
while the optical output is set to ADAT.
TOSLink ),
ADAT sync: sample-accurate synchronization
The MOTU 828’s standard 9-pin ADAT SYNC IN
connector provides sample-accurate synchronization with all Alesis ADAT tape decks connected
to the system—or any device that supports the
ADAT sync format. For example, if you digitally
transfer a single track of material from an ADAT
via light pipe into audio workstation software on
the computer, and then transfer the track back to
the ADAT, it will be recorded exactly at its original
location, down to the sample.
1394 FireWire
The 1394 FireWire jack accepts a standard IEEE
1394 FireWire cable to connect the MOTU 828 to a
FireWire-equipped Macintosh or Windows
computer.
THE MOTU 828 FRONT PANEL
Headphone output and main volume control
The MOTU 828 front panel includes a quarter-inch
stereo headphone output jack and volume knob.
The headphone output matches the main stereo
outs, and the volume knob controls both the
headphones and the main outs.
CueMix™ Plus no-latency monitoring
The MOTU 828 provides CueMix™ Plus
no-latency monitoring from any analog input (or
input pair). The CueMix monitored signal is mixed
with outputs 1-2 (which are duplicated on the main
outs). An independent volume knob is provided
for the monitored signal.
Input trim knobs and phantom power switch
The Input Gain section provides 40 dB of trim for
the eight analog inputs. Inputs 1 and 2 have
independent trim knobs, while inputs 3 through 8
have one knob per input pair (3-4, 5-6, and 7-8).
The phantom power switch provides 48V phantom
power to the two mic inputs. Up is on; down is off.
10
ABOUT THE MOTU 828
Page 11
Activity lights
The front panel of the MOTU 828 displays several
banks of activity LEDs. The
Analog Activity ,
S/PDIF and Optical lights display the presence of
signal on the input or output. The threshold for
these lights is approximately -42 dB. The
Clock
lights indicate the global sample rate (as chosen in
the MOTU 828 Console software).
16-BIT AND 24-BIT RECORDING
The MOTU 828 system handles all data with a
24-bit signal path, regardless of the I/O format. You
can record and play back 16-bit or 24-bit audio files
at either 44.1 or 48 KHz via any of the MOTU 828’s
analog or digital inputs and outputs. 24-bit audio
files can be recorded with any compatible host
application that supports 24-bit recording.
HOST AUDIO SOFTWARE
The MOTU 828 system ships with a standard
WDM Windows driver that allows you to record,
edit, play back and mix your MOTU 828 projects
using your favorite Windows audio software.
The MOTU 828 also includes a Windows ASIO
driver for multi-channel compatibility with any
audio application that supports ASIO drivers.
A COMPUTER-BASED SYSTEM
Regardless of what software you use with the
MOTU 828, the host computer determines the
number of tracks the software can record and play
simultaneously, as well as the amount of real-time
effects processing you can apply to your mix. A
faster computer with more RAM and faster hard
drives will allow more simultaneous tracks and
real-time effects than a slower computer with less
RAM and slower hard drives. Today’s fastest
computers can typically play as many as 32 tracks
or more. Standard third-party SCSI acceleration
products can also help you achieve higher track
counts.
ABOUT THE MOTU 828
11
Page 12
12
ABOUT THE MOTU 828
Page 13
CHAPTER
2
Packing List and
Windows System Requirements
PACKING LIST
The MOTU 828 ships with the items listed below. If
any of these items are not present in your MOTU
828 box when you first open it, please immediately
contact your dealer or MOTU.
■
One MOTU 828 I/O rack unit
■
One 1394 “FireWire” cable
■
Power cord
■
One MOTU 828 Mac/Windows manual
■
One AudioDesk Manual
■
One cross-platform CD-ROM
■
Product registration card
WINDOWS SYSTEM REQUIREMENTS
The MOTU 828 system requires the following
Windows system:
■
A 300 MHz Pentium-based PC compatible or
faster equipped with at least one FireWire port
■
A Pentium III/300 or faster is recommended
■
At least 32 Mb (megabytes) of RAM (64 Mb or
more is recommended)
■
Windows 2000, Windows Me or
Windows 98/Second Edition
■
A large hard drive (preferably at least 9 Gb)
PLEASE REGISTER TODAY!
Please send in the registration card included with
your MOTU 828 system. As a registered user, you
will be eligible to receive on-line technical support
email and announcements about product
enhancements as soon as they become available.
Only registered users receive these special update
notices, so please, complete and mail this
registration card!
Thank you for taking the time to register your new
MOTU products!
13
Page 14
14
PACKING LIST AND WINDOWS SYSTEM REQUIREMENTS
Page 15
CHAPTER
3
IMPORTANT! Run the MOTU 828
Software Installer First
OVERVIEW
The MOTU 828 ships with the following software
and drivers for Windows 2000:
Software
componentPurpose
MOTU 828 Console Provides access to all of the settings in
Allows Cubase VST or other ASIOcompliant software to do multi-channel
input and output with the MOTU 828.
Only required if you are using
Cubase VST or another ASIO-dependent program.
Allows any WDM-driver compatible
audio software to do multichannel
input and output with the MOTU 828.
INSTALL THE MOTU 828 SOFTWARE FIRST!
Before you connect the MOTU 828 audio interface
to your computer and turn it on, insert the MOTU
828 software CD and run the MOTU 828 Software
Installer. This ensures that all the MOTU 828
components are properly installed in your system.
If Windows asks you to locate the drivers
If you’ve already connected the MOTU 828 to your
computer and switched it on, Windows probably
issued an alert notifying you that the MOTU 828
requires drivers, followed by another window
asking you to locate the drivers on disk. If this
happens:
Cancel the driver search.
Switch off the MOTU 828.
Restart the computer.
Run the MOTU 828 Software Installer as
instructed in the next section.
INSTALLING THE MOTU 828 SOFTWARE
To install the MOTU 828 software, insert the
MOTU Audio CD-ROM and follow the directions
it gives you on your computer screen.
1
2
3
4
15
Page 16
MOTU 828 CONSOLE
The MOTU 828 Console application is placed by
the installer in the folder you specify during the
installation process. If you aren’t sure where it is on
your hard drive, use the Find command in the
Windows Start menu.
The MOTU 828 Console gives you access to all of
the settings in the MOTU 828, such as the clock
source and sample rate. For complete details, see
chapter 5, “MOTU 828 Console” (page 31).
For details about using Cubase VST with the
MOTU 828, see chapter 6, “ASIO-compatible
Audio Software” (page 39).
THE MOTU 828 WDM DRIVER
The MOTU 828 WDM driver provides standard
multi-channel input and output for audio
applications running under Windows 2000,
Windows Me or Windows 98/Second Edition. See
chapter 7, “Windows Multimedia-compatible
Audio Software” (page 45) for details.
The MOTU 828 installer CD installs the MOTU
828 WDM driver into Windows for you.
Figure 3-1: The MOTU 8 28 Console gi ves you access to all of t he
settings in the MOTU 828 hardware.
ASIO MOTU 828 DRIVER
ASIO stands for Audio Streaming Input
The ASIO MOTU 828 driver allows MOTU 828 to
provide multi-channel input and output for
Steinberg’s Cubase VST software, or any other
audio application that supports ASIO drivers.
The ASIO MOTU 828 driver is only required if you
are using Cubase VST (or another audio program
that relies on the ASIO driver to support multichannel I/O with the MOTU 828).
The ASIO MOTU 828 driver is installed by the
MOTU 828 Software Installer and properly
registered with Windows, so you don’t need to be
concerned about its installation or location.
16
IMPORTANT! RUN THE MOTU 828 SOFTWARE INSTALLER FIRST
1 Plug one end of the MOTU 828 FireWire cable
(included) into the FireWire socket on the
computer as shown below in Figure 4-1.
2 Plug the other end of the FireWire cable into the
MOTU 828 I/O as shown below in Figure 4-1.
Figure 4-1: Connecting the MOTU 828 to the computer.
17
Page 18
CONNECT INPUTS AND OUTPUTS
The MOTU 828 audio interface has the following
input and output connectors:
■ 8 balanced, +4 dB quarter-inch analog outputs
■ 6 balanced +4 dB quarter-inch analog inputs
■ 2 Neutrik™ XLR/quarter-inch analog inputs
■ 2 balanced, +4 dB quarter-inch TRS main outs
The optical connectors can be connected to either
an ADAT “lightpipe” device or an optical S/PDIF
“TOSLink” device. Just make the connections as
needed and then you’ll set the format later on in the
MOTU 828 Console. The input is independent
from the output; for example, you could connect
ADAT optical input from your digital mixer and
connect optical output to the TOSLink input on
your DAT deck.
■ 1 pair of RCA S/PDIF in and out
■ 1 pair of optical in/out switchable between
ADAT (“Lightpipe”) or optical S/PDIF (TOSLink)
Here are a few things you should keep in mind as
you are making these connections to other devices.
Mic/line inputs
The mic/line inputs (1 and 2) have mic preamps, so
connect your microphone(s) to inputs 1 and/or 2.
If your microphone requires phantom power, move
the 48V phantom power switch on the front panel
to the up (enabled) position. Use the trim knobs on
the front panel to adjust the input level as needed
for each input.
Quarter-inch analog
The quarter-inch analog inputs (3-8) and outputs
(1-8) are balanced TRS connectors that can also
accept an unbalanced plug. Use the trim knobs on
the front panel to adjust the input level as needed
for each input (or input pair).
Optical
Reminder: optical goes OUT to IN and IN to OUT,
like MIDI.
Main outs
The main outputs, as well as the headphone output
on the front panel, match the output from Analog
outputs 1-2. In addition, any live inputs that are
being monitored via CueMix™ Plus are summed to
the signal on the main outs. The main out volume
is controlled by the main volume knob on the front
panel. In a standard studio configuration, the main
outs are intended for a pair of studio monitors.
However, if you are using the MOTU 828 in other
ways, such as in a live performance situation, you
could use the main outs for stage monitors while
outputs 1 and 2 are used for the PA.
Using an external mixer
The MOTU 828 can be used without a mixing
board, as shown on the opposite page in
Figure 4-3. In this setup, all mixing and effects
processing occurs in the audio software running on
the computer.
If you’d like to use external mixing, see “Using the
MOTU 828 with a mixer” on page 20.
Figure 4-2: the MOTU 828 rear panel.
18
INSTALLING THE MOTU 828 HARDWARE
Page 19
A TYPICAL STUDIO SETUP (NO MIXER)
Here is a typical MOTU 828 studio setup. This rig
can be operated without an external mixer. All
mixing and processing can be done in the
computer with audio software. During recording,
you can use the MOTU 828’s CueMix™ Plus no-
PC
FireWire
sends to
latency monitoring to listen to what you are
recording via the main outs. The MOTU 828
Console software lets you choose the input (or
input pair) that you wish to monitor. Guitar can be
processed with plug-ins on the computer, or with
an amp.
guitar
(with or without amp)
mic
Headphone jack
(on front panel)
FX unit
(in rack
below)
other outputs
(stage
monitors,
etc.)
headphones
ADAT optical
ADAT
INSTALLING THE MOTU 828 HARDWARE
S/PDIF
DAT deck
synths, samplers, effects units, etc.
Figure 4-3: A typical MOTU 828 studio setup.
monitors
quarter-inch analog outs
synthesizer
quarter-inch analog outs
19
Page 20
USING THE MOTU 828 WITH A MIXER
While there are many ways to use the MOTU 828
with an external mixer, typically the MOTU 828
serves as a multi-channel “pipeline” between the
mixer and the computer. If your mixer is analog,
connect the analog section of the MOTU 828 to
your mixer. If your mixer is digital, and it has
ADAT optical I/O, you can connect them optically
as shown below in Figure 4-4. The MOTU 828’s
PC
FireWire
available analog and S/PDIF inputs and outputs
can serve as an extension to the mixer I/O, but then
you will probably find yourself mixing in two
places: the mixer and the computer. A word of
advice: if you would like to use the MOTU 828 with
an external mixer, use the mixer for mixing. Trying
to mix large multitrack projects in two places can
become very cumbersome very quickly.
20
8-channel digital I/O
ADAT optical
synths, samplers, etc.
synthesizers
digital mixer
Figure 4-4: Using the MOTU 828 with a digital mixer.
INSTALLING THE MOTU 828 HARDWARE
Page 21
MAKING SYNC CONNECTIONS
If you connect devices digitally to the MOTU 828,
or if you need to synchronize the MOTU 828 with
an outside time reference such as SMPTE time
code, you must pay careful attention to the
synchronization connections and clock source
issues discussed in the next few sections.
Do you need to synchronize the MOTU 828?
If you will be using only the MOTU 828’s analog
inputs and outputs (and none of its digital I/O),
and you have no plans to synchronize your MOTU
828 system to SMPTE time code, you don’t need to
make any sync connections. You can skip this
section and proceed to chapter 5, “MOTU 828
Console” (page 31) where you’ll open the MOTU
828 Console and set the Clock Source setting to Inter nal as shown below in Figure 4-5. For details,
see chapter 5, “MOTU 828 Console” (page 31).
Figure 4-5: You can run the MOTU 828 under its own internal clock
when it has no digital audio connections and you are not synchronizing the MOTU 828 system to an external time reference such as
SMPTE time code.
Synchronization is critical for clean digital I/O
Synchronization is critical in any audio system, but
it is especially important when you are transferring
audio between digital audio devices. Your success
in using the MOTU 828’s digital I/O features
depends almost entirely on proper synchronization. The following sections guide you through
several recommended scenarios.
Be sure to choose a digital audio clock master
When you transfer digital audio between two
devices, their audio clocks must be in phase with
one another — or phase-locked. Otherwise, you’ll
hear clicks, pops, and distortion in the audio — or
perhaps no audio at all.
Not phase-lockedPhase-locked
Device A
Device B
Figure 4-6: When transferring audio, two devices must have phaselocked audio clocks to prevent clicks, pops or other artifacts.
There are two ways to achieve phase lock: slave one
device to the other, or slave both devices to a third
master clock. If you have three or more digital
audio devices, you need to slave them all to a single
master audio clock.
Situations that require synchronization
There are three general cases in which you will
need to synchronize the MOTU 828 with other
devices:
■ Synchronizing the MOTU 828 with other digital
audio devices so that their digital audio clocks are
phase-locked (as shown in Figure 4-6)
■ Slaving the MOTU 828 system to SMPTE time
code, such as from a video deck or an analog multitrack tape recorder
■ Both of the above
INSTALLING THE MOTU 828 HARDWARE
Master
Slave
Figure 4-7: To keep the MOTU 828 phased-locked with other digital
audio devices connected to it, choose a clock master.
Master
SlaveSlave
Also remember that audio phase lock can be
achieved independently of time code (location).
For example, one device can be the time code
master while another is the audio clock master. But
only one device can be the audio clock master. If
you set things up with this rule in mind, you’ll have
trouble-free audio transfers with the MOTU 828.
21
Page 22
DO YOU NEED A SYNCHRONIZER?
Whether or not you’ll need a synchronizer depends
on your gear and what you will be doing with your
MOTU 828 system. The following pages give you
specific information about common sync
scenarios. At least one of them will likely apply to
you. Here are some general considerations to help
you figure out if you need (or want) a synchronizer
for you MOTU 828 system.
You don’t need a synchronizer if...
As explained earlier, the MOTU 828’s digital audio
clock must be phase-locked (synchronized) with
other connected digital audio devices to achieve
clean digital transfers between them. Can this be
accomplished without an additional digital audio
synchronizer? It depends on the nature of the other
devices, and what you want to do with them. You
don’t need a synchronizer if the device has a way of
locking itself directly to the MOTU 828’s clock (via
ADAT lightpipe or S/PDIF), AND if the device
carries no sense of location in time. A digital mixer
is a good example: it can slave to its ADAT lightpipe
connection from the MOTU 828, and it has no
sense of time; it just passes audio through for
mixing.
An ADAT, on the other hand, does have a sense of
location in time, either via SMPTE time code or via
its own sample address time format (ABS). If you
want to fly tracks back and forth between your
computer and ADAT tapes while maintaining the
audio’s position in time, the ADAT SYNC port on
the MOTU 828 lets you do so without a separate
synchronizer — and with sample-accurate
precision (if you’re using an ASIO 2.0-compatible
program that supports sample-accurate sync). Just
connect the MOTU 828 directly to the ADAT as
discussed in “ADAT sync with no synchronizer” on
page 25. But if you also want transport control over
the entire rig (including the ADAT) from your
audio software, you’ll need a MIDI Machine
Control-compatible synchronizer such as MOTU’s
MIDI Timepiece AV, as discussed in “Sampleaccurate sync” on page 23. If you are simply using
the ADAT as a backup medium where you transfer
eight tracks at a time and don’t care about their
exact location, no synchronizer is required. You
can simply slave the ADAT to the optical output
from the MOTU 828 as explained in “Syncing
optical devices” on page 27.
Transport control from your computer
If you have ADATs or other digital recording
devices connected to the MOTU 828, your audio
software — if it supports MIDI Machine Control
(MMC) — allows you to control the transports of
everything from your computer. Most advanced
audio programs support MMC. To do this, you’ll
also need an MMC-compatible ADAT
synchronizer such as a MOTU MIDI Timepiece AV
or Digital Timepiece. Synchronizers like these
allow you to play, stop, rewind and locate all of your
tape decks using the transport controls in the audio
software. If your audio software supports ASIO 2,
you can do so with sample-accurate precision. The
following pages show you how to achieve MMC
control, where possible.
Continuous sync to SMPTE / MTC
If you need to synchronize the MOTU 828 (and
your audio software) to SMPTE time code, this
requires a dedicated synchronizer, which
continuously resolves the MOTU 828 to SMPTE
time code, while simultaneously resolving your
audio software to MIDI Time Code. When the
MOTU 828 is continuously resolved, audio
playback will never drift with respect to the time
code. Again, the MOTU MIDI Timepiece AV and
Digital Timepiece are affordable examples of this
type of sy nchronizer. The following pages illustrate
how to set up this type of synchronization with
various kinds of gear. Regardless of the specific
equipment you have, you can follow the basic
connections shown.
22
INSTALLING THE MOTU 828 HARDWARE
Page 23
SAMPLE-ACCURATE SYNC
Your MOTU 828 system provides you with the
most advanced, accurate synchronization possible
with Alesis ADATs (Type I and II) or any device
that supports ADAT sync. Figure 4-8 below shows
a few best-case scenarios for syncing the MOTU
828 with ADATs (in ABS time). Below is a brief
explanation of the benefits you achieve with these
setups.
Transport control from your computer
If you have a MIDI Timepiece AV, Digital
Timepiece or any ADAT synchronizer that also
supports MIDI Machine Control (MMC), you can
play, stop, rewind and locate all of your ADATs
using the transport controls in the audio software
running on your computer. This includes cueing
features like markers, position bars, playback
wipers, time rulers , etc.
Sample accurate locating
With sample accurate locating, when you transfer
audio between AudioDesk (or any other sampleaccurate host software such as Digital Performer)
and ADATs, the audio will not drift in time — even
by as little as one sample. This is the tightest
possible synchronization between digital audio
devices. The timing in your audio will not be
affected in any way by the process of transferring it
between the MOTU 828 and your ADATs. Sampleac cur ate lo cat ing is o nly p ossi ble wi th s of twa re t hat
supports this feature, such as AudioDesk, Digital
Performer, Cubase VST or other ASIO 2
compatible audio software.
Tape recorder/
Sync formatSoftwareSynchronizer
ADATCubase VST or other
ASIO 2.0-compatible app
MIDI Timepiece AV
or Digital Timepiece
Continuous sync to SMPTE / MTC
This means that the MOTU 828 can be
continuously resolved to SMPTE time code (or
MIDI Time Code) via a dedicated synchronizer,
such as the MIDI Timepiece AV. When the MOTU
828 is continuously resolved, audio playback will
never drift with respect to time code.
Figure 4-9: Cubase VST 5 and other ASIO 2.0-compatible programs
support sample-accurate transfers with ADATs.
Sample
accurate
locating
YesYesYes
Transport
control
from computer
Continuous sync
to SMPTE / MTC
ADATCubase VST or other
ADATCubase VST or other
Figure 4-8: These recommended combinations of hardware and software offer the tightest sync possible between the MOTU 828 and digital
audio tape decks in the form of sample-accurate locating between the software and the tape decks. Sample accurate locating is possible with
ADATs even without a MIDI Timepiece AV or Digital Timepiece, although you give up transport control from the computer without them.
INSTALLING THE MOTU 828 HARDWARE
ASIO 2.0-compatible app
ASIO 2.0-compatible app
BRC (or any MMC capable ADAT synchronizer)
NoneYesNoNo
YesYesYes
23
Page 24
SAMPLE-ACCURATE SYNC WITH ADATs
The MOTU 828 can achieve sample-accurate sync
with Cubase VST or any ASIO 2.0-compatible
audio software that also supports sample-accurate
sync. Connect the MOTU 828 to the end of the
ADAT chain and make the software settings shown
below in Figure 4-10. If you will be using the ADAT
for its analog inputs and outputs only (you won’t be
using any tapes in the ADAT), treat it as an ‘optical’
device. See “Syncing optical devices” on page 27.
Windows computer running Cubase VST
or other host audio software
USB or parallel cable (bi-directional MIDI
connection) bearing MMC transport
commands from the host audio software
to the MIDI Timepiece AV (or other
synchronizer)
FireWire
If you have a MOTU
synchronizer, set its
sync mode to Internal.
ADAT
Sync Out
What this setup provides
Sample-accurate locating between all ADATs, the MOTU
✓
828, and Cubase VST or other ASIO 2-compatible software
that supports sample-accurate sync.
Transport control of everything from the computer.
✓
OR
✓ Continuous sync to SMPTE time code and other sync sources
(the other source is the transport master in this case).
To set the MOTU 828 hardware clock source for
Digital Timepiece, MIDI
Timepiece AV, Alesis BRC or
any other MMC-compatible
ADAT synchronizer
sample-accurate sync:
1. Run the MOTU 828 Console.
2. Choose ADAT 9-pin from the Clock Source
menu as shown to above.
3. Make sure the Sample Rate setting matches
the tape decks and synchronizer.
ADATs
Sync Out
Sync Out
Sync Out
FireWire
Figure 4-10: Connections for sample-accurate sync between one or more ADATs and the MOTU 828.
Sync In
Sync In
Sync In
Sync In
ADAT
sync cables
etc.
24
INSTALLING THE MOTU 828 HARDWARE
In Cubase VST:
1. Open the Synchronization window.
2. Choose the ASIO 2.0/MMC option shown below.
3. Make sure that Sync button is pushed as shown
below.
4. Click the play or record button. Cubase will then
start playing or recording, and the ADAT will
begin to roll, too, after being triggered by the
MIDI Timepiece AV (or other synchronizer).
Page 25
ADAT SYNC WITH NO SYNCHRONIZER
Even if you don’t have an ADAT synchronizer, you
can achieve sample-accurate sync between ADATs,
the MOTU 828, and any sample-accurate software.
Just connect the MOTU 828 to the end of the ADAT
sync chain as shown below. But without the
synchronizer, you don’t get transport control from
your computer, nor can you slave the system to
external SMPTE time code. Instead, you have to
play, stop, rewind and cue the system from the
transports on your ADAT (or via an Alesis LRC). If
you will be using the ADAT for its analog inputs
Windows computer running Cubase VST
or other host audio software
With no synchronizer, the ADAT that is the
FireWire
master of the ADAT sync chain becomes
transport master over everything, includ-
ing your audio software.
and outputs only (you won’t be using any tapes in
the ADAT), treat it as an ‘optical’ device. See
“Syncing optical devices” on page 27.
What this setup provides
Sample-accurate locating between all ADATs, the MOTU
✓
828, and Cubase VST or other ASIO 2-compatible software
that supports sample-accurate sync.
No transport control of everything from the computer
✗
✗ No continuous sync to SMPTE time code and other sources
To set the MOTU 828 hardware clock source for
sample-accurate sync:
4. Run the MOTU 828 Console.
5. Choose ADAT 9-pin from the Clock Source
menu as shown to above.
6. Make sure the Sample Rate setting matches
the tape decks and synchronizer.
ADATs
Sync Out
Sync In
Sync Out
Sync In
Sync Out
FireWire
Sync In
Figure 4-10: Sample-accurate sync without an ADAT synchronizer.
INSTALLING THE MOTU 828 HARDWARE
ADAT
sync cables
etc.
In Cubase VST:
4. Open the Synchronization window.
5. Choose the ASIO 2.0 option shown below.
6. Make sure that Sync button is pushed as shown
below.
7. Click the play or record button. Cubase will then
wait for you to start your ADAT.
8. Press the Play button on the front panel of your
ADAT to initiate playback or recording.
25
Page 26
SYNC TO SMPTE, WORD CLOCK, VIDEO
To synchronize (continuously resolve) the
MOTU 828 with SMPTE time code, word clock,
video or blackburst, you will need a MOTU Digital
Timepiece, MIDI Timepiece AV or any other
universal synchronizer equipped with ADAT sync.
The synchronizer resolves continuously to the
chosen time base, and the MOTU 828 slaves to the
synchronizer via ADAT Sync. In addition, the
audio software running on the computer slaves to
MIDI Time Code generated by the synchronizer.
How accurate will transfers be between your audio
software and other audio devices? As good as the
resolution of MIDI time code, which — at 30 fps —
provides quarter frame resolution of 120th of a
Windows computer running Cubase VST
or other host audio software
USB or parallel cable sending
MIDI Time Code to the host
audio software from the
MIDI Timepiece AV (or other
synchronizer)
FireWire
MOTU Digital Timepiece, MIDI
Timepiece AV or any other
ADAT-compatible synchronizer
second (367 samples at 44.1 KHz). But if you are
running your synchronizer under its own internal
clock (triggering it via MMC from your software),
you will probably get even tighter timing than that
— perhaps as good as ±50 samples.
What this setup provides
No sample-accurate locating
✗
✓ Timing accuracy that is at least as good as MIDI time code
(quarter-frame)— and maybe even tighter
No transport control of from the computer
✗
✓ Continuous sync to SMPTE time code and other sync sources
(the other source is the transport master in this case)
Video deck generating
video and SMPTE
To set the MOTU 828 hardware clock source for
SMPTE
time code
and
video
SMPTE, word clock or video sync:
1. Run the MOTU 828 Console.
2. Choose ADAT 9-pin from the Clock Source
menu as shown to above.
3. If tape decks are included in the sync chain,
make sure the Sample Rate setting matches
the tape decks and synchronizer.
ADAT
Sync Out
FireWire
Figure 4-11: Resolving the MOTU 828 to an external time base,
such as SMPTE time code, word clock, or video. In this example,
an S-VHS video deck is supplying SMPTE time code (address)
and video (as the time base). For examples of other sources,
consult the MIDI Timepiece AV manual (or other synchronizer).
26
Sync In
Sync In
ADAT
Sync Out
Having one or
more ADATs in
the sync chain
is optional.
ADAT
sync cable
In Cubase VST:
1. Open the Synchronization window.
2. Choose the ASIO 2.0 option shown below.
3. Make sure that Sync button is pushed as shown
below.
4. Click the play or record button. Cubase will then
wait for you to start your video deck or other
SMPTE timecode source.
5. Press the Play button on the video deck (or other
SMPTE source) to initiate playback or recording.
INSTALLING THE MOTU 828 HARDWARE
Page 27
SYNCING OPTICAL DEVICES
The word optical is our short-hand way of referring
to any device that connects to the MOTU 828 via
an optical cable. But we make a further distinction:
an optical device is also one that doesn’t care about
sample location. An example is a digital mixer.
Since a digital mixer is not a recording device, it has
no sense of sample location like an ADAT does. An
ADAT can cue to a specific sample number (e.g.
sample number 43,478, 103) — as can any device
that supports ADAT sync, but most digital mixers
simply mix and process audio digitally, with no
sense of a specific sample location. There are many
other devices that fall into this category, including
digital effects processors, synthesizers, A/D
converters, and many more.
For ADATs or other devices that support ADAT
sync, synchronize them with the MOTU 828 as
described in the previous sections of this chapter.
For optical devices, such as digital mixers, all you
have to do is make sure that their digital audio
clock is phase-locked (in sync with) the MOTU
828. There are three ways to do this:
■ Slave the optical device to the MOTU 828
■ Slave the MOTU 828 to the optical device
■ Slave both the optical device and the MOTU 828
to a third master clock (such as a Digital Timepiece
or MIDI Timepiece AV synchronizer)
MOTU 828
Digital mixer
or other optical
device
Clock Source setting =
Internal, or any clock source
setting except Optical. The optical
device slaves to the MOTU 828 (via
its optical cable connection).
ADAT Optical OUT
ADAT Optical IN
MOTU 828
MIDI Timepiece AV
set to Internal
Digital mixer
or other optical
device
MOTU 828
Word Clock IN
Digital mixer
or other optical
device
Word Clock Out
ADAT Optical OUT
ADAT Optical IN
bi-directional
optical
ADAT Sync out
ADAT sync in
With this setup, in the MOTU 828
Console, choose the Optical clock
source setting. The MOTU 828
slaves to the optical device via
their optical cable connection.
MOTU 828
Clock Source setting =
optical
MOTU 828
Clock Source setting =
ADAT 9-pin
PC
Computer with MOTU 828
Figure 4-12: Three setups for synchronizing an optical device with the MOTU 828. You can slave the optical device to the MOTU 828 or vice
versa with their optical connections. For more elaborate setups, you can slave both to a digital audio synchronizer like the Digital Timepiece.
Don’t use any of these setups for an ADAT or other optical device that records. Instead, see “Sample-accurate sync with ADATs” on page 24.
INSTALLING THE MOTU 828 HARDWARE
27
Page 28
SYNCING S/PDIF DEVICES
DAT decks and other S/PDIF devices will sync to
the MOTU 828 in one of two ways:
■ Via the S/PDIF connection itself
■ Via word clock
S/PDIF devices with no word clock
If your DAT deck or other S/PDIF device has no
word clock sync connectors, just connect it to the
MOTU 828 via the S/PDIF connectors. When the
device records S/PDIF audio (from the MOTU
828), it will simply synchronize to the clock
provided by the audio input.
On the other hand, when you transfer audio from
the S/PDIF device into the MOTU 828, you’ll have
to slave the MOTU 828 to its S/PDIF input. If you
have other digital audio devices connected to the
MOTU 828, and they are not slaved directly to the
MOTU 828 itself, you may hear clicks and pops
resulting from their unsynchronized audio clock. If
so, just turn them off during the transfer.
S/PDIF devices with word clock
If your S/PDIF device has a Word Clock input, slave
both the S/PDIF device and the MOTU 828 to a
MOTU MIDI Timepiece AV (or other synchronizer). You can then freely transfer audio between
the MOTU 828 and the S/PDIF device.
MOTU 828
S/PDIF
S/PDIF
DAT deck
or other S/PDIF device
MIDI Timepiece AV
set to Internal
or other S/PDIF device
Figure 4-13: Two setups for synchronizing an S/PDIF device with the MOTU 828. In the top diagram, sync is achieved via the S/PDIF connection
itself. In this case, you have to choose S/PDIF as the MOTU 828’s clock source when recording from the S/PDIF device. If you don’t want to have to
worry about switching the Clock Source setting depending on the direction of the S/PDIF transfer, you can slave the S/PDIF device to word clock
from the MOTU 828 or vice versa (not shown). The Word Clock connection maintains sync, regardless of the direction of the transfer.
MOTU 828
Clock Source setting =
Internal (when transferring from the
MOTU 828 to the S/PDIF device)
Word Clock Out
Word Clock IN
DAT deck
S/PDIF
ADAT Sync out
ADAT sync in
MOTU 828
Clock Source setting =
S/PDIF (when transferring from
the S/PDIF device to the MOTU 828)
MOTU 828
Clock Source setting =
ADAT 9-pin
PC
Computer with MOTU 828
28
INSTALLING THE MOTU 828 HARDWARE
Page 29
SYNCING LARGE SYSTEMS
If you are connecting the MOTU 828 to a lot of
other digital audio gear, get a Digital Timepiece. It
can synchronize a wide variety of devices, and it
offers sample accurate synchronization for devices
that support it, such as ADATs. You will also be able
to control everything from the transport controls
of your audio software. If you have even more
devices than a single Digital Timepiece can
support, consider a word clock distribution device,
such as the Aardvark Aard Sync™ video-to-word
clock converter. Products like this offer multiple
word clock outputs and an extremely low-jitter
clock.
INSTALLING THE MOTU 828 HARDWARE
29
Page 30
30
INSTALLING THE MOTU 828 HARDWARE
Page 31
CHAPTER
5MOTU 828 Console
OVERVIEW
The MOTU 828 Console provides access to all
MOTU 828 settings.
There are several ways to access the MOTU 828
Console settings:
■ From the Windows Start menu, choose
Programs>MOTU>MOTU 828 Console
■ From within Cubase (Version 5 or higher), click
the ASIO Control Panel button in the System Setup
dialog as shown in Figure 6-2 on page 40.
■ From within other ASIO-compatible programs,
refer to their documentation.
MOTU 828 SETTINGS
Figure 5-1: The MOTU 828 Console gives you access to all of the
settings in the MOTU 828 hardware.
Sample Rate
Choose the desired Sample Rate for recording and
playback. The MOTU 828 can operate at either
44.1 KHz (the standard rate for compact disc
audio) or 48 KHz. Make absolutely sure that all of
31
Page 32
the devices connected digitally to the MOTU 828
match the MOTU 828’s sample rate. Also make
sure that your Digital Timepiece, MIDI
Timepiece AV or other digital audio synchronizer
matches it as well.
☛ Mismatched sample rates cause distortion and
crackling. If you hear this sort of thing, check the
sample rate settings in your hardware and here in
the MOTU 828 Console.
Clock Source
The Clock Source determines the digital audio clock
that the MOTU 828 will use as its time base. For a
complete explanation of synchronization issues,
see “Making sync connections” on page 21. The
following sections briefly discuss each clock source
setting.
Internal
Use the Internal setting when you want the MOTU
828 to operate under its own digital audio clock.
For example, you may be in a situation where all
you are doing is playing tracks off hard disk in your
digital audio software on the computer. In a
situation like this, you most often don’t need to
reference an external clock of any kind.
Another example is transferring a mix to DAT. You
can operate the MOTU 828 system on its internal
clock, and then slave the DAT deck to the MOTU
828 via the S/PDIF connection (usually DAT decks
slave to their S/DIF input when you choose the
S/PDIF input as their record source).
digital clock master. In this case, you would set the
MOTU 828 clock source setting to ADAT 9-pin, as
described below.
ADAT 9-pin
The ADAT 9-pin clock source setting refers to the
ADAT digital audio synchronization format. It
allows the MOTU 828 to slave to an ADAT — or
ADAT sync chain — via its ADAT sync 9-pin
connector. ADAT sync also carries precise, sample
location information, which allows Cubase VST or
other sample-accurate ASIO 2.0-compatible audio
software to transfer audio to and from ADATs
without drifting by as much as one sample.
Use this setting when you are using the MOTU 828
with one or more ADATs. Make sure the MOTU
828 is connected to the end of the ADAT sync
chain.
You should also use this setting if you have a MIDI
Timepiece AV, which allows you to drive your
entire system from the transport controls of your
audio software.
ADAT sync also allows you to continuously resolve
the MOTU 828 to SMPTE time code, video, and
word clock via a synchronizer like the MOTU
MIDI Timepiece AV.
For further details, see “Sample-accurate sync with
ADATs” on page 24, “ADAT sync with no
synchronizer” on page 25 and “Sync to SMPTE,
word clock, video” on page 26.
If you would like help determining if this is the
proper clock setting for your situation, see “Do you
need a synchronizer?” on page 22.
With ADAT devices, however, you usually want an
external digital audio synchronizer, such as the
MIDI Timepiece AV or Digital Timepiece, to be the
32
ADAT optical
The ADAT optical clock source setting refers to the
clock provided by the MOTU 828’s optical input,
when it is connected to an ADAT optical device.
This setting can be used to slave the MOTU 828
directly to the optical input connection. Most of
the time, you can set up a better operating scenario
that uses one of the other synchronization options.
However, there may be occasions when you have an
MOTU 828 CONSOLE
Page 33
ADAT optical compatible device that has no way of
synchronizing digitally to the MOTU 828 or an
external synchronizer such as the Digital
Timepiece. In this case, the ADAT Optical clock
source setting lets you slave the MOTU 828 to the
device itself via its digital input to the MOTU 828.
If the ADAT Optical setting does not appear in the
menu, it means that the MOTU 828’s optical input
is currently either turned off or set to the TOSLink
format. In either case, choose the ADAT optical
format from the Optical input menu (Figure 5-1 on
page 31).
optical format. In either case, choose the TOSLink
format from the Optical input menu (Figure 5-1 on
page 31).
This setting is also useful if you just need to make a
simple, click-free digital transfer between the
MOTU 828 and another device — where a time
code reference and shared transport control are not
needed — without having to set up an elaborate
synchronization scenario.
For further details about this setting, see “Syncing
optical devices” on page 27.
This setting is also useful if you just need to make a
simple, click-free digital transfer between the
MOTU 828 and another device — where a time
code reference and shared transport control are not
needed — without having to set up an elaborate
synchronization scenario.
For further details about this setting, see “Syncing
optical devices” on page 27.
TOSLink
The TOSLink clock source setting refers to the
clock provided an optical S/PDIF device connected
to the MOTU 828’s optical input. This setting can
be used to slave the MOTU 828 directly to the
optical input connection. Most of the time, you can
set up a better operating scenario that uses one of
the other synchronization options. However, there
may be occasions when you have an TOSLinkcompatible device that has no way of
synchronizing digitally to the MOTU 828 or an
external synchronizer such as the Digital
Timepiece. In this case, the TOSLink clock source
setting lets you slave the MOTU 828 to the other
device via the MOTU 828’s optical input.
If the TOSLink setting does not appear in the menu,
it means that the MOTU 828’s optical input is
currently either turned off or set to the ADAT
S/PDIF
The S/PDIF clock source setting refers to the
S/PDIF RCA input connector on the MOTU 828.
This setting allows the MOTU 828 to slave to
another S/PDIF device.
Use this setting whenever you are recording input
from a DAT deck or other S/PDIF device into the
MOTU 828. It is not necessary in the opposite
direction (when you are transferring from the
MOTU 828 to the DAT machine).
If the S/PDIF setting does not appear in the menu,
it means that the MOTU 828’s optical input is
currently set to TOSLink. To make it appear again,
either disable the Optical input or switch it to the
ADAT optical format (Figure 5-1 on page 31).
For further details about this setting, see “Syncing
S/PDIF devices” on page 28.
Samples Per Buffer
A sample buffer is a s ma ll par t o f c omp ute r me mor y
that briefly holds digital audio samples as they are
passed between the computer and the MOTU 828.
The Samples Per Buffer setting lets you control the
size of these buffers in the MOTU 828 driver. A
higher setting reduces the processing load on your
computer; a lower setting reduces monitoring latency, which is the slight delay you hear when
MOTU 828 CONSOLE
33
Page 34
patching live audio through the MOTU 828 and
your audio software. (See “Monitoring live input”
on page 36 for further explanation.) For example,
you might want to listen to the vocals you are
recording with a little bit of reverb on them from a
plug-in in your audio software. The signal that gets
recorded to disk is ‘dry’, but the signal in your
headphones is ‘wet’. Since the vocal material
recorded to disk is dry, you then have the flexibility
to apply real-time reverb to the track after
recording and change it at any time (since the
reverb is not ‘printed’ in the track). You can even
automate changes to plug-in effects over time (if
your software supports plug-in automation).
A Samples Per Buffer setting of 512 produces a
round-trip delay (monitoring latency) of
approximately 23 milliseconds (ms). A setting of
256 produces monitoring latency of around
12-13 ms, and the delay starts to become inaudible.
Monitoring latency has no effect on recording
It is important to note that monitoring latency only
applies to the live signal as it is being monitored. It
has no effect whatsoever on the timing accuracy of
the material being recorded to hard disk. The
system is precisely calibrated to record and play
back hard disk audio perfectly on time.
Choosing the right ‘Samples per buffer’ setting
If you would like to process live inputs with plug-in
effects in your software (such as putting a reverb
plug-in on a vocal mic input or a guitar amp
simulation plug-in on your guitar signal), make the
Samples Per Buffer setting as low as possible. How
low you can go depends on how fast your computer
is and how much plug-in processing (and other
processor-intensive tasks) you are using in your
recording project. Try settings below 512 and if
your computer begins to act sluggish, try raising
them again to the next highest buffer setting until
the computer feels responsive. If your computer
doesn’t allow you to go low enough, try cueMix™
Plus monitoring (“Monitor input — CueMix™
Plus” below) and then apply plug-in processing to
the disk track after it has been recorded.
Changing the ‘Samples Per Buffer’ setting
If you are at a point in your recording project where
you are not currently working with live, patchedthru material (e.g. you’re not recording vocals),
switch to a higher Samples Per Buffer setting.
Depending on your computer’s CPU speed, you
might find that settings in the middle work best
and that your computer is much more responsive.
CueMix ™Plus monitoring
The MOTU 828’s CueMix™ Plus no-latency
monitoring feature completely eliminates
monitoring latency. For further information, see
“Monitoring live input” on page 36.
Optical input/output
The Optical input and Optical output settings let
you choose between ADAT optical (‘lightpipe’) and
S/PDIF optical (‘TOSLink’) as the format for the
MOTU 828’s optical input and output. Choose the
format that matches the device connected. If you
are not using the optical connections, it is
recommended that you turn them off (as provided
in the menus) to reduce bandwidth and processing
overhead. Note that you can operate the input and
output independently. For example, you could use
the ADAT optical format on the input (with a
digital mixer, for example) and optical S/PDIF on
the output (with a DAT deck, for example).
Monitor input — CueMix™ Plus
The Monitor input settings enables the MOTU 828
CueMix™ Plus feature (Figure 5-3 on page 37),
which lets you route a single analog input or input
pair directly to the MOTU 828 main outs, where it
is mixed with the signal on the main outs. Routing
occurs with virtually no monitoring latency
(audible delay), and the signal is passed through
dry (with no signal processing of any kind). In
addition, the CueMix Plus signal volume can be
34
MOTU 828 CONSOLE
Page 35
controlled (relative to the main mix volume) with
the Monitor knob on the MOTU 828 front panel.
For information about other ways to handle input
monitoring, see “Monitoring live input” on
page 36.
Wave support for legacy (MME) software
Windows only exposes the first two channels of a
multi-channel WDM audio stream to applications
which use the legacy (MME) multimedia interface.
The Enable full Wave support for legacy (MME) software (less efficient) option forces the MOTU 828
multimedia driver to expose all channels as stereo
pairs, providing full MME support.
If your host audio software does not directly
support WDM audio and instead only supports
legacy MME drivers, use this option to access
multiple MOTU 828 input and output channels.
If your host audio software does directly support
WDM audio, leave this option unchecked for
optimal performance.
This option is only available when the multimedia
driver has been installed, and it defaults to being
not checked.
MOTU 828 CONSOLE
35
Page 36
MONITORING LIVE INPUT
There are two ways to monitor live audio input with
the MOTU 828: 1) through the computer or 2) via
CueMix™ Plus hardware monitoring. Figure 5-2
below shows method 1, which allows you to add
effects processing such as reverb and guitar amp
effects via plug-ins in your audio software. See
“Samples Per Buffer” on page 33 for details about
how to reduce — and possibly eliminate — the
audible monitoring delay that the computer
introduces.
Figure 5-3 shows how to use CueMix™ Plus
hardware-based monitoring, which lets you hear
what you are recording with no monitoring delay
and no computer-based effects processing. (You
can add effects later, after you’ve recorded the live
input as a disk track.) To learn more, see “Monitor
input — CueMix™ Plus” on page 34.
1. Live input (from mic, guitar, etc.)
enters the MOTU 828.
If the material you are recording is suitable, there is
a third way to monitor live input: use both methods
(Figure 5-2 and Figure 5-3) at the same time. For
example, you could route vocals to both the
computer (for a bit of reverb) and mix that
processed signal on the main outs with dry vocals
from CueMix Plus.
3. Mic signal is ‘patched
thru’ back to the MOTU
2. Mic signal goes immediately to the computer (dry,
with no effects processing).
PC
Figure 5-2: There are two ways to monitor live audio inputs with the MOTU 828: 1) through the computer or 2) via CueMix™ Plus hardware
monitoring. This diagram shows method 1 (through the computer). When using this method, use the MOTU 828’s ‘Samples Per Buffer’ setting
to reduce the slight delay you hear when monitoring the live input, but don’t lower it too much, or your computer will act sluggish.
828 with reverb or other
plug-in effects, if any.
4. Mic signal (with plug-in processing, if
any) is routed to the main outs (or other
MOTU 828 outputs that you’ve chosen in
your audio software).
36
MOTU 828 CONSOLE
Page 37
1. Live input (from mic, guitar, etc.)
enters the MOTU 828.
3. Mic signal is mixed with the main outs,
2. CueMix™ Plus immediately patches the
live mic signal directly to the main outs,
completely bypassing the computer (dry,
with no effects processing).
Figure 5-3: This diagram shows the signal flow when using CueMix™ Plus no-latency monitoring. Notice that this method does not allow you
to process the live input with plug-ins in your audio software while it is being monitored. You can, however, add effects later — after recording
the live input as a disk track. CueMix™ Plus lets you hear what you are recording with no delay and no computer-based effects.
and you can control the volume (relative to
the rest of the mix) with the ‘monitor’
knob on the front panel of the MOTU 828.
MOTU 828 CONSOLE
37
Page 38
38
MOTU 828 CONSOLE
Page 39
CHAPTER
6ASIO-compatible Audio Software
OVERVIEW
The MOTU 828 includes an ASIO driver that
provides multi-channel I/O with any ASIOcompatible audio software.
ASIO is an acronym for Audio Streaming Input and
Output. The ASIO MOTU 828 driver allows the
MOTU 828 to provide multi-channel audio input
and output for any audio application that supports
ASIO drivers.
Sample-accurate sync
The MOTU 828 ASIO driver supports sampleaccurate sync (via the MOTU 828’s ADAT sync
feature) for applications that support it.
Attention: Cubase VST users
Cubase VST Version 5 is used for the examples in
this chapter. However, there is no significant
difference between the Version 5 examples shown
and what you see in Version 4. The basic
procedures are the same.
Attention: Other software users
Cubase VST is used for the examples in this
chapter. However, the basic procedures are the
same and can be easily applied to any ASIOcompatible software. Just follow the general
descriptions at the beginning of each main section
in this chapter. Consult your software
documentation for details about each topic, if
necessary.
If your audio software doesn’t support ASIO
If your host audio software does not support ASIO,
but instead supports WDM (or legacy Wave) audio
drivers, refer to the next chapter.
CHECK THE MOTU 828 CONSOLE
Before you run your audio software, launch the
MOTU 828 Console to configure your MOTU 828
hardware. The MOTU 828 Console lets you choose
39
Page 40
the audio clock source, and it lets you enable the
optical input and output, if needed. For details, see
chapter 5, “MOTU 828 Console” (page 31).
Figure 6-1: The MOTU 8 28 Console gi ves you access to all of t he
settings in the MOTU 828 hardware, including the clock source,
optical I/O enable/disable and CueMix™ Plus monitor input(s).
ENABLE THE MOTU 828 ASIO DRIVER
Once you’ve made the preparations described so
far in this chapter, you’re ready to run your audio
software and enable the MOTU 828 driver. Check
the audio system or audio hardware configuration
window in your software. There will be a menu
there that lets you choose among various ASIO
drivers that may be in your system. Choose the
MOTU 828 from this menu.
Enabling the MOTU 828 ASIO driver in Cubase
To activate the MOTU 828 ASIO driver in Cubase:
1 Choose System from the Audio menu.
Figure 6-2: Acti vating the MOTU 828 driver in Cubase. The Audio
Clock Source setting shown here is for the MOTU 828. You can also
choose the clock source in the MOTU 828 Console.
NUMBER OF AUDIO CHANNELS
Be sure to configure your audio software so that it
has enough audio channels (or voices) to cover the
18 channels of input and output provided by the
MOTU 828:
■ 8 channels for analog I/O
■ 2 channels for RCA S/PDIF
■ Zero, 2 or 8 channels for optical, depending on
whether you have optical turned off, or set to
S/PDIF or ADAT optical
For example, if you are using analog only, you only
need 8 channels. If you are using analog and RCA
S/PDIF, you need 10 channels.
2 Choose MOTU 828 from the ASIO device
menu.
3 Make the other settings in the dialog as need for
your system and synchronization scenario.
40
As another example, if you are using analog, RCA
S/PDIF and ADAT optical, you need 18 channels
(the maximum number of simultaneous channels
provided by the MOTU 828).
In Cubase, set the number of channels in the
System dialog (as shown above in Figure 6-2).
ASIO-COMPATIBLE AUDIO SOFTWARE
Page 41
WORKING WITH MOTU 828 INPUTS AND
OUTPUTS
Once you’ve enabled the MOTU 828 ASIO driver in
your host audio software, MOTU 828 audio inputs
and outputs will appear in your software’s
input/output menus, and you can set them up and
use them as any standard audio input and output.
If you don’t see the optical inputs and/or outputs,
check the MOTU 828 Console to make sure they
are turned on and set to the format you require. If
you don’t plan to use the optical input or output,
turn it off to conserve computer bandwidth.
MOTU 828 inputs/outputs in Cubase
Once you’ve chosen the MOTU 828 driver in the
Audio System dialog, choose Audio Inputs from the
Audio menu to see the MOTU 828 inputs. To
activate them, click the Acti ve light next to each
input. Once you’ve activated the MOTU 828
inputs, you can then assign them to Cubase audio
channels in the Monitor window in the usual
fashion. MOTU 828 outputs appear in the Master
window as output assignments for the master fader
and busses.
software to calibrate these inputs before recording.
As you feed signal to the MOTU 828 analog input,
adjust the input’s corresponding trim knob on the
front panel of the MOTU 828 until peaks in your
software’s level meter are as high as possible
without clipping (hitting zero dB).
CHANGING MOTU 828 SETTINGS
You can change the MOTU 828 settings at any time
by accessing the MOTU 828 Console. (See
“Accessing the MOTU 828 settings” on page 31.)
REDUCING DELAY WHEN MONITORING
LIVE INPUTS
If you have live audio inputs connected to the
MOTU 828, such as MIDI synthesizers, samplers,
microphones or other live instruments, you might
hear a slight delay when their audio is being
monitored through your MOTU 828 hardware and
your host audio program. (In Cubase, this delay is
displayed under Latency in the Audio System
dialog shown in Figure 6-2.) There are several ways
to reduce — and eliminate — this audible
monitoring delay. For details, see “Monitoring live
input” on page 36.
Figure 6-3: Use the output buttons at the bottom of each channel
strip to assign MOTU 828 outputs to busses. You can then assign
channels in the Monitor window to each bus as desired.
TRIMMING THE ANALOG INPUTS
The MOTU 828 analog inputs provide trim knobs
on the front panel. Each knob provides 40dB of
input gain. Use the level meters in your audio
ASIO-COMPATIBLE AUDIO SOFTWARE
AUDIO CLOCK SOURCE
If you have devices connected to the MOTU 828
digital inputs (optical or RCA S/PDIF), or if you
need to synchronize MOTU 828 digital audio and
your host audio software to an external sync
source, be sure the MOTU 828 clock source is set
properly. For complete information, see “Making
sync connections” on page 21 and “Clock Source”
on page 32.
41
Page 42
SYNCHRONIZATION
If your audio software has the ability to slave to
SMPTE time code or perform sample-accurate
digital audio transfers with Alesis ADATs, then it
can take advantage of the synchronization features
in the MOTU 828.
As you read through the following sections to
decide what form of synchronization you might
need with other devices in your studio, be sure to
consult “Making sync connections” on page 21 for
the proper hardware connections. Use the
synchronization diagrams to be clear about how
you will be synchronizing your audio software and
the MOTU 828 to the other components of your
system.
Synchronizing digital audio connections
If you have devices connected to the MOTU 828
digital inputs (optical or RCA S/PDIF), you need to
be concerned with the synchronization of the
MOTU 828’s digital audio clock with other devices
connected to it digitally (if any). For example, if
you have a digital mixer connected to the
MOTU 828 via an ADAT optical lightpipe cable,
you need to make sure that their audio clocks are
phase-locked. For details, see “Syncing optical
devices” on page 27 and “Making sync
connections” on page 21. If you don’t have any
digital audio devices connected to the MOTU 828,
digital audio phase-lock does not apply to you.
the Clock Source setting in the MOTU 828 Console
is set to ADAT 9-pin. For examples of how to set
this up, see “Sync to SMPTE, word clock, video” on
page 26.
Sample-accurate sync to ADAT
If your audio software supports sample-accurate
synchronization, the MOTU 828 provides sampleaccurate digital transfers between the computer
and ADATs, or any other device that supports
standard ADAT sample address (ADAT Sync).
A sample-accurate digital transfer is one in which
the original location of the audio is preserved in the
transfer, down to the sample.
For details on how to connect your hardware for
sample-accurate sync, see “Sample-accurate sync”
on page 23. For software setup, consult your audio
software documentation.
Sample-accurate sync with Cubase
For sample-accurate sync in Cubase, set up Cubase
as follows:
1 In Cubase’s Audio System Setup window (Audio
menu), choose an Audio Clock Source setting of ADAT 9-pin.
2 In Cubase’s Synchronization window, set the
Sync Source Time Base to ASIO 2.0 as shown
below:
Slaving to SMPTE time code
If you need to slave your audio software and the
MOTU 828 system to SMPTE time code, follow the
instructions in your software’s manual for slaving it
to MIDI Time Code (MTC). To ensure that your
audio tracks don’t drift out of sync with your MIDI
tracks or the time code, use a hardware
synchronizer like the MOTU MIDI Timepiece AV
or Digital Timepiece to slave the MOTU 828
hardware to the SMPTE (or MIDI Time) Code as
well. A digital audio synchronizer is required for
drift-free SMPTE/MIDI time code sync. Make sure
42
Figure 6-4: Setting up sample-accurate sync via ASIO 2.
3 Enable SYNC in the Controls window.
ASIO-COMPATIBLE AUDIO SOFTWARE
Page 43
Figure 6-5: Enabling the SYNC button.
4 Begin playback from the sample-accurate sync
source (ADAT, etc.) Transport control is handled
by the sample-accurate sync source.
The ASIO 2.0 MMC setting in Cubase
The Timecode Base menu shown above in
Figure 6-4 includes a setting called ASIO 2.0 MMC,
which provides sample-accurate transport control
of the MOTU MIDI Timepiece AV (or other
MMC-compatible synchronizer) from the
transport buttons in Cubase itself.
MIDI MACHINE CONTROL (MMC)
If your audio software supports MIDI Machine
Control (MMC), and you have ADATs and a
MMC-compatible ADAT synchronizer like the
MIDI Timepiece AV, you can control everything
from the transport controls and cueing features in
your audio software (like the playback wiper, etc.)
See “Sample-accurate sync to ADAT” on page 42
for details on how to set this up.
24-BIT OPERATION
Your MOTU 828 hardware fully supports 24-bit
recording in any audio software that supports it.
Simply enable 24-bit operation as instructed by the
software. The MOTU 828 system always supplies
the software with a 24-bit data stream, and when
you enable 24-bit operation, it simply uses all
24-bits supplied by the MOTU 828 hardware.
ASIO-COMPATIBLE AUDIO SOFTWARE
43
Page 44
44
ASIO-COMPATIBLE AUDIO SOFTWARE
Page 45
CHAPTER
7Windows Multimedia-compatible
Audio Software
OVERVIEW
The MOTU 828 WDM driver provides standard
multi-channel input and output for audio software
running under Windows 2000, Windows Me or
Windows 98/Second Edition.
WDM is an acronym for Windows Driver Model.
The MOTU 828 WDM driver allows the MOTU
828 to provide multi-channel audio input and
output for any audio application that supports
WDM audio drivers.
Attention: Cakewalk users
Cakewalk SONAR is used for the WDM driver
setup examples in this chapter.
each main section in this chapter. Consult your
software documentation for details about each
topic, if necessary.
INSTALLING THE MOTU 828 WDM DRIVER
The MOTU 828 installer CD-ROM installs the
MOTU 828 WDM driver into Windows for you.
That’s pretty much all the preparation you need.
See chapter 3, “IMPORTANT! Run the MOTU 828
Software Installer First” (page 15).
ENABLING WAVE (MME) COMPATIBILITY
If your host audio software does not yet support
Windows 2000 WDM drivers, you need to enable
Wave driver compatibility in the MOTU 828 WDM
driver so that all of the MOTU 828’s inputs and
outputs show up in your software. For details, see
“Wave support for legacy (MME) software” on
page 35.
Before you run your audio software, launch the
MOTU 828 Console to configure your MOTU 828
hardware. The MOTU 828 Console lets you choose
the audio clock source, and it lets you enable the
optical input and output, if needed. For details, see
chapter 5, “MOTU 828 Console” (page 31).
Attention: other software users
Cakewalk’s SONAR software is used for the WDM
driver setup examples in this chapter. However, the
basic procedures are the same and can be easily
applied to any WDM-compatible software. Just
follow the general descriptions at the beginning of
45
Page 46
Figure 7-1: The MOTU 8 28 Console gi ves you access to all of t he
settings in the MOTU 828 hardware, including the clock source,
optical I/O enable/disable and CueMix™ Plus monitor input(s).
ENABLING THE MOTU 828 WDM DRIVER
Once you’ve made the preparations described so
far in this chapter, you’re ready to run your audio
software and enable the MOTU 828 WDM driver.
Check the audio system or audio hardware
configuration window in your software.
Figure 7-2: Activating the MOTU 828 driver in SONAR by highlighting
inputs and outputs.
Other audio settings in SONAR
There are a few other settings in SONAR that
impact MOTU 828 operation:
Enabling the MOTU 828 WDM driver in SONAR
To activate the MOTU 828 WDM driver in
SONAR:
1 Choose Audio Options from the Options menu.
2 Click the Drivers tab.
3 Highlight the MOTU 828 inputs and outputs
that you wish to use and unhighlight the ones you
don’t as shown in Figure 7-2.
1 In the Audio Options window, click the General
tab.
2 Choose a MOTU 828 input and output for
recording and playback timing as shown below in
Figure 7-3. It doesn’t matter which input or output
you choose.
Figure 7-3: Make sure you have chosen a MOTU 828 input and output
for the playback and recording timing master settings.
46
WINDOWS MULTIMEDIA-COMPATIBLE AUDIO SOFTWARE
Page 47
3 In the Audio Options window, click the Driver
Profiles tab and set the Stream > 16 bit data as
option to 4 bytes left-justified as shown below in
Figure 7-4.
Figure 7-4: Setting the streaming option in Cakewalk’s SONAR.
WORKING WITH MOTU 828 INPUTS AND
OUTPUTS
Once you’ve enabled the MOTU 828 WDM driver
in your host audio software, MOTU 828 audio
inputs and outputs will appear in your software’s
input/output menus, and you can set them up and
use them as any standard audio input and output.
If you don’t see the optical inputs and/or outputs,
check the MOTU 828 Console to make sure they
are turned on and set to the format you need. If you
don’t plan to use the optical input or output, turn it
off to conserve computer bandwidth.
TRIMMING THE ANALOG INPUTS
The MOTU 828 analog inputs provide trim knobs
on the front panel. Each knob provides 40dB of
input gain. Use the level meters in your audio
software to calibrate these inputs before recording.
As you feed signal to the MOTU 828 analog input,
adjust the input’s corresponding trim knob on the
front panel of the MOTU 828 until peaks in your
software’s level meter are as high as possible
without clipping (hitting zero dB).
CHANGING MOTU 828 SETTINGS
You can change the MOTU 828 settings at any time
by accessing the MOTU 828 Console. (See
“Accessing the MOTU 828 settings” on page 31.)
REDUCING DELAY WHEN MONITORING
LIVE INPUTS
If you have live audio inputs connected to the
MOTU 828, such as MIDI synthesizers, samplers,
microphones or other live instruments, you might
hear a slight delay when their audio is being
monitored through your MOTU 828 hardware and
your host audio program. There are several ways to
reduce — and eliminate — this audible monitoring
delay. For details, see “Monitoring live input” on
page 36.
AUDIO CLOCK SOURCE
If you have devices connected to the MOTU 828
digital inputs (optical or RCA S/PDIF), or if you
need to synchronize MOTU 828 digital audio and
your host audio software to an external sync
source, be sure the MOTU 828 clock source is set
properly. For complete information, see “Making
sync connections” on page 21 and “Clock Source”
on page 32.
SYNCHRONIZATION
If your audio software has the ability to slave to
SMPTE time code, then it can take advantage of the
synchronization features in the MOTU 828.
As you read through the following sections to
decide what form of synchronization you might
need with other devices in your studio, be sure to
consult “Making sync connections” on page 21 for
the proper hardware connections. Use the
synchronization diagrams to be clear about how
you will be synchronizing your audio software and
the MOTU 828 to the other components of your
system.
WINDOWS MULTIMEDIA-COMPATIBLE AUDIO SOFTWARE
47
Page 48
Synchronizing digital audio connections
If you have devices connected to the MOTU 828
digital inputs (optical or RCA S/PDIF), you need to
be concerned with the synchronization of the
MOTU 828’s digital audio clock with other devices
connected to it digitally (if any). For example, if
you have a digital mixer connected to the
MOTU 828 via an ADAT optical light pipe cable,
you need to make sure that their audio clocks are
phase-locked. For details, see “Syncing optical
devices” on page 27 and “Making sync
connections” on page 21. If you don’t have any
digital audio devices connected to the MOTU 828,
digital audio phase-lock does not apply to you.
Slaving to SMPTE time code
If you need to slave your audio software and the
MOTU 828 system to SMPTE time code, follow the
instructions in your software’s manual for slaving it
to MIDI Time Code (MTC). To ensure that your
audio tracks don’t drift out of sync with your MIDI
tracks or the time code, use a hardware
synchronizer like the MOTU MIDI Timepiece AV
or Digital Timepiece to slave the MOTU 828
hardware to the SMPTE (or MIDI Time) Code as
well. A digital audio synchronizer is required for
drift-free SMPTE/MIDI time code sync. Make sure
the Clock Source setting in the MOTU 828 Console
is set to ADAT 9-pin. For examples of how to set
this up, see “Sync to SMPTE, word clock, video” on
page 26.
24-BIT OPERATION
Your MOTU 828 hardware fully supports 24-bit
recording in any audio software that supports it.
Simply enable 24-bit operation as instructed by the
software. The MOTU 828 system always supplies
the software with a 24-bit data stream, and when
you enable 24-bit operation, it simply uses all
24-bits supplied by the MOTU 828 hardware.
48
WINDOWS MULTIMEDIA-COMPATIBLE AUDIO SOFTWARE
Page 49
CHAPTER
8Performance Tips & Troubleshooting
CD player will not play through the MOTU 828
Playback from an audio CD on the PC requires a
physical connection between the CD player and
your sound card. The MOTU 828 does not have an
internal CD connection.
Why does the start sound not play through the
MOTU 828?
The MOTU 828 will only playback audio at a
sampling rate of 44.1 kHz, or 48 kHz
The computer freezes when it starts up
If the computer is unable to boot up, it may be a
conflict with the WDM Driver. As soon as the
computer boots up, Windows will try and initialize
the WDM Driver. If this fails, your computer will
hang. To determine if the WDM Driver is the
problem, boot up in Safe Mode or remove the
MOTU Audio software with the Add/Remove
Programs Control Panel then restart. Reinstall the
MOTU 828 software and choose only to install the
MOTU 828 ASIO driver, not the WDM Driver.
Restart again.
‘New hardware detected’ window
If you connect your MOTU 828 before running the
MOTU 828 Software Installer CD, Windows will
prompt you that new hardware has been detected.
Cancel this, and run the MOTU 828 Software
Installer, rather than allowing Windows to locate
the drivers.
Audio in Cakewalk or SONAR speeds up or slows
down
This could be caused by having incorrect SMPTE/
MTC Sync settings when you record audio into
Cakewalk. These settings are located at the bottom
of the Advanced Tab in the Audio Options dialog
box, accessed from Cakewalk’s Tools menu. Make
sure that you have the SMPTE/MTC Sync set to
“Trigger and Freewheel” before recording audio
while slaved to external time code.
MOTU 828 inputs and outputs are not available in
Cakewalk or SONAR
Make sure that the inputs and/or outputs that you
want to use are enabled in Cakewalk or SONAR.
MOTU 882 inputs and outputs are not available in
Cubase
Make sure that the inputs and outputs are enabled
in Cubase.
Sound Forge and ‘Smooth Scroll’
If the Smooth Scroll option under the Options
menu is turned on, you may experience clicks and
pops or other anomalies in the audio playback.
This gets worse as you zoom in more to the
waveform while playing. For the best quality
playback, turn this option off.
ADATs - converting 48kHz tracks to 44.1kHz
If the audio on your ADAT tape was recorded at
48kHz, then you must transfer that audio into your
host software at 48kHz. If you plan to digitally mix
this data and burn an audio CD, you must convert
your audio to 44.1kHz with your host software.
Once you sample rate convert your audio to
44.1kHz, you will have to set the sample rate in the
console back to 44100 so you can play the file. You
always want your digital clocks and sample rates to
match when dealing with any kind of digital audio
transfer or synchronizing.
No input from an ADAT
If you are having trouble recording on your ADAT
from the MOTU 828, check the Digital input
setting. After power cycling, tape decks often come
49
Page 50
up configured to record from their analog inputs.
You won't be able to record from the MOTU 828 to
a tape deck until it is switched to digital input.
Alesis blackface (classic) ADAT optical sync
If you are using a Classic (black-faced) ADAT as a
sync master in your MOTU 828 setup, and you
want to record sample accurately into it, you must
configure it to use its internal clock, instead of
slaving to the optical input. To do this, hold down
the SET LOCATE button and press the DIGITAL
IN button. This will toggle the ADAT between
external sync (shown as "diG") and internal sync
("int"). Note that the ADAT will return to the "diG"
setting each time it is powered off.
Alesis ADAT track offset
If you find that sample accurate transfers from an
ADAT are displaced by a small amount, try to reset
the ADAT to its factory default state. This is
accomplished by powering on the ADAT while
holding down the RECORD and PLAY keys simultaneously. The ADAT lx uses a 'soft' power key so lx
users will have to unplug and plug the ADAT lx
while holding down the RECORD and PLAY keys.
Clicks and pops under word clock sync
Many problems result from incorrect word
clocking. It is essential that all digital devices in the
system be word locked. Consult chapter 4,
“Installing the MOTU 828 Hardware” (page 17) for
detailed information on how to word clock your
gear. Whenever there is any weird noise or
distortion, suspect incorrect word lock.
Clicks and pops due to hard drive problems
If you have checked your clock settings sync cable
connections and you are still getting clicks and
pops in your audio, you may have a drive related
problem. Set the MOTU 828 Clock Source to
Internal and try recording just using the analog
inputs and outputs of the MOTU 828. If you
encounter the same artifacts you may want try
using another drive in your computer. Clicks and
pops can also occur when the drive is severely
fragmented, the disk drivers are outdated, or if you
are using a SCSI accelerator that is not optimally
configured for working with audio.
Connecting or powering gear during operation
It is not recommended that you connect/
disconnect, or power on/off devices connected to
the MOTU 828 while recording or playing back
audio. Doing so may cause a brief glitch in the
audio.
Monitoring - How to monitor inputs?
Please refer to the documentation for the audio
application that you are using. If your application
does not support input monitoring, you will need
to use the MOTU 828’s hardware-based CueMix
Plus monitoring feature. Please see “Monitor input
— CueMix™ Plus” on page 34.
No optical inputs or outputs are available in host
audio application
Check to make sure you have the desired optical
inputs and/or outputs enabled in the MOTU 828
Console.
Clicks and pops under ADAT Sync
Sometimes, the ADAT sync cable seems to be
plugged into the MOTU 828, and partially works but it isn’t really all the way in. This can cause clicks
when slaved to ADAT 9-pin. Make sure the cable is
seated firmly.
50
Controlling monitoring latency
See “Monitoring live input” on page 36.
CUSTOMER SUPPORT
We are happy to provide customer support to our
registered users. If you haven’t already done so,
please take a moment to complete the registration
card included with your MOTU 828 system. When
PERFORMANCE TIPS & TROUBLESHOOTING
Page 51
we receive your card, you’ll be placed on our
mailing list for free software updates and
information about new products.
REPLACING DISKS
If your MOTU 828 software CD-ROM becomes
damaged and fails to provide you with fresh,
working copies of the program, our Customer
Support Department will be glad to replace it. You
can request a replacement disc by calling our
business office at (617) 576-2760 and asking for the
customer service department.
TECHNICAL SUPPORT
If you are unable, with your dealer’s help, to solve
problems you encounter with the MOTU 828
system, you may contact our technical support
department in one of the following ways:
■ Tech support hotline: (617) 576-3066 (Monday
through Friday, 9 am to 6 pm EST)
■ Tech support 24-hour fax line: (617) 354-3068
■ Tech support email: techsupport@motu.com
■ Web site: www.motu.com
Please provide the following information to help us
solve your problem as quickly as possible:
■ The serial number of the MOTU 828 system.
This is printed on a sticker placed on the bottom of
the MOTU 828 rack unit. You must be able to
supply this number to receive technical support.
■ Software version numbers for the audio software
you are using, the MOTU 828 WDM Driver,
MOTU 828 ASIO driver, etc.
■ A brief explanation of the problem, including the
exact sequence of actions which cause it, and the
contents of any error messages which appear on the
screen.