User’s Guide
OctaMic XTC
The Professional’s Multi-format Solution
AutoSet
™
SteadyClock
Professional Mic/Line/Instrument Preamp
8-Channel Microphone / Line AD-Converter
4-Channel Line/Phones DA-Converter
8-Channel Analog to AES / ADAT Interface
64-Channel MADI Interface
ADAT / AES / MADI Format Converter
24 Bit / 192 kHz Digital Audio
MIDI Remote Control
USB 2.0 Class Compliant Operation
™
QuickGain™
AES-3
AES-10
24 Bit Interface
Important Safety Instructions..................................4
General
1 Introduction ...............................................................6
2 Package Contents.....................................................6
3 Brief Description and Characteristics.....................6
4 First Usage – Quick Start
4.1 Controls - Connectors - Displays............................7
4.2 Quick Start ..............................................................9
5 Accessories...............................................................9
6 Warranty...................................................................10
7 Appendix..................................................................10
Usage and Operation
8 Front Panel Controls
8.1 Select Keys..........................................................14
8.2 Encoders..............................................................14
8.3 Menu Keys...........................................................15
8.4 Channel Menu......................................................16
8.5 Setup Menu..........................................................18
8.5.1 Options Menu..................................................18
8.5.2 Setups Menu...................................................20
8.6 Clock ....................................................................21
9 The Input Channel in Detail
9.1 Gain......................................................................22
9.2 Phantom Power....................................................22
9.3 AutoSet.................................................................23
9.4 Instrument / Line ..................................................23
10 Using Multiple Units with MADI
10.1 Delay Compensation............................................24
10.2 Compensation ID .................................................26
11 Remote Control
11.1 MIDI......................................................................26
11.2 MIDI over MADI....................................................26
11.3 Control via TotalMix FX........................................26
Inputs and Outputs
12 Analog Inputs / Outputs
12.1 Mic / Line In (XLR) ...............................................28
12.2 Line In (TRS)........................................................28
12.3 Instrument In........................................................28
12.4 Phones / Line Out ................................................29
13 Digital Inputs and Outputs
13.1 AES / EBU............................................................30
13.2 ADAT Optical .......................................................31
13.3 MADI ....................................................................32
14 Word Clock
14.1 Word Clock Input and Output...............................34
14.2 Technical Description and Background...............35
14.3 Cables and Termination.......................................36
15 MIDI...........................................................................36
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User’s Guide OctaMic XTC © RME
Class Compliant Mode
16 General.....................................................................38
17 System Requirements............................................38
18 Operation.................................................................38
18.1 Useful Hints.......................................................39
18.2 Class Compliant under Windows/Mac OS X ....40
19 Supported Inputs and Outputs..............................41
20 Operation at the Unit ..............................................41
Technical Reference
21 Technical Specifications
21.1 Analog..................................................................44
21.2 Digital Inputs........................................................45
21.3 Digital Outputs .....................................................46
21.4 Digital...................................................................46
21.5 MIDI .....................................................................46
21.6 General................................................................47
21.7 Firmware..............................................................47
21.8 MADI User Bit Chart ............................................47
21.9 Connector Pinouts...............................................48
22 Technical Background
22.1 Terminology.........................................................50
22.2 Lock and SyncCheck...........................................51
22.3 Latency and Monitoring .......................................52
22.4 DS – Double Speed.............................................53
22.5 QS – Quad Speed ...............................................53
22.6 AES/EBU – SPDIF...............................................54
22.7 Signal to Noise ratio in DS- / QS-Operation........55
22.8 MADI Basics ........................................................56
22.9 SteadyClock.........................................................57
23 Block Diagram.........................................................58
24 MIDI Implementation OctaMic XTC
24.1 Basic SysEx Format ............................................56
24.2 Message Types - Commands..............................56
24.3 Table....................................................................57
User’s Guide OctaMic XTC © RME
3
Important Safety Instructions
ATTENTION! Do not open chassis – risk of electric shock
The unit has non-isolated live parts inside. No user serviceable parts inside.
Refer service to qualified service personnel.
Mains
• The device must be earthed – never use it without proper grounding
• Do not use defective power cords
• Operation of the device is limited to the manual
• Use same type of fuse only
To reduce the risk of fire or electric shock do not expose this device to rain or
moisture. Prevent moisture and water from entering the device. Never leave
a pot with liquid on top of the device. Do not use this product near water, i. e.
swimming pool, bathtub or wet basement. Danger of condensation inside –
don't turn on before the device has reached room temperature.
Installation
Surface may become hot during operation – ensure sufficient ventilation.
Avoid direct sun light and do not place it near other sources of heat, like radiators or stoves. When mounting in a rack, leave some space between this
device and others for ventilation.
Unauthorized servicing/repair voids warranty. Only use accessories
specified by the manufacturer.
Read the manual completely. It includes all information necessary
to use and operate this device.
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User’s Guide OctaMic XTC © RME
User’s Guide
OctaMic XTC
General
User’s Guide OctaMic XTC © RME
5
1. Introduction
The OctaMic XTC is extremely versatile. It offers a hi-end 8-channel microphone preamplifier
with AD-conversion, compatible to hi-level line signals and Hi-Z instruments. A 4-channel DAconversion serves monitoring and as digital return path. The digital outputs ADAT, AES/EBU
and MADI exist also as inputs, providing insert capabilities as well as digital conversion and
splitting between these formats. In Class Compliant mode the XTC operates as audio interface
with current Macs, and when using a Camera Connection Kit even with the iPad. The latter is
especially interesting, as the XTC is equipped with any analog and digital I/Os, therefore being
the perfect universal interface for this platform. Add the sheer number of 24 I/O-channels in CC
mode, and the XTC is clearly on top of any comparable device.
2. Package Contents
Please check that your OctaMic XTC package contains each of the following:
• OctaMic XTC
• Power cord
• Manual
• 1 optical cable (TOSLINK), 2 m
3. Brief Description and Characteristics
The OctaMic XTC is a full range hi-end preamp and AD/DA-converter in reference quality, fully
remote controllable. In a standard 19" box with 1 unit height the device offers numerous extraordinary features like Intelligent Clock Control (ICC), SyncCheck, SteadyClock, QuickGain,
AutoSet, MIDI over MADI, and remote control via USB, MADI and MIDI.
• 8 balanced XLR microphone inputs
• 4 TRS line, 4 TS instrument inputs
• 85 dB gain range
• Analog input level from –53 dBu up to +32 dBu
• High-end circuitry with relay and super low-noise microphone front-end
• Large frequency range (200 kHz) with special EMI input filtering
• 2 unbalanced stereo line / phones outputs
• Near click-free gain changes
• AutoSet: Automatic gain reduction with multiple linking
• Current state can be stored to 6 user presets
• Fully remote controllable
• Word clock input and output
• SyncCheck tests and reports the synchronization status of the clock signals
• MIDI I/O
• 4 x AES/EBU Out per D-sub, 8 channels @ 192 kHz
• 2 x ADAT Out, 8 channels @ 96 kHz
• MADI I/O (64 channels @ 48 kHz)
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User’s Guide OctaMic XTC © RME
4. First Usage – Quick Start
4.1 Controls - Connectors - Displays
The front of the OctaMic XTC features eight Select keys, 32 status LEDs, two stereo TRS outputs, four menu keys, two rotary encoders with push functionality and a graphical colour display.
Each channel has three LEDs showing the current state
of PAD/INST, 48V and signal. The channel’s Select key
gives quick access to the gains of the corresponding
input channels, which are then immediately adjustable
via the rotary encoders 1 and 2. The display also
includes two level meters for exact level calibration.
When the Select key is held pressed two lines are shown
between 1 and 2, indicating stereo mode. Both channels
are then adjusted simultaneously by one encoder.
Input 1 to 4 include optional attenuation against too high input levels (PAD, -20 dB). This setting
is found in the CHANNEL menu. The 1/4"TRS input within the XLR socket operates like the
XLR input, but is 9 dB less sensitive.
The 1/4" TS inputs of channels 5 to 8 is unbalanced and has a high impedance. It is optimized
to be used with instruments, and also activated in the CHANNEL menu.
The key PHONES gives immediate access to the Phones output level by encoder 1, and a selection of the signal source by encoder 2. The volume of Phones 1/2 is directly controlled by
encoder 1 and 2 when the display shows the level meter overview.
The key GROUPS brings up the group screen. Encoder 1 changes between Group All and
Group 1 to 4. Encoder 2 changes all gains of the corresponding group simultaneously.
The key CHANNEL gives access to:
Pre Amp Gain Amount of amplification
AutoSet Gain Automatic gain reduction
Gain Group Select one of four groups
+48V Phantom power (XLR only)
PAD / Instrument Input attenuation -20 dB / Switch to 1/4" TS
Phase Invert Phase inversion (180°)
Mute Mutes the current channel
The key SETUP offers several options to configure the device. Encoder 1 changes between
Options and Setups. The sub-menus in Options, General Settings, Digital Routing, Clock and
MIDI Sources, are accessed with encoder 2.
Pressing any of these keys again exits the current menu and returns to the level meter overview.
In the STATE area 8 LEDs provide a quick overview. SYNC indicates whether the external signals word clock, AES, ADAT and MADI are present and valid. Incoming and outgoing MIDI data
is signaled in the MIDI area. CTRL I and CTRL O show in- and outgoing remote control commands, no matter which port is used. ALL I and ALL O signal general MIDI data, again on any
port. A more detailed display of the incoming data is included in the SETUP – Options – MIDI
Sources screen (see chapter 8.5).
User’s Guide OctaMic XTC © RME
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The rear panel of the OctaMic XTC has eight analog inputs, mains power, a USB 2.0 port, MIDI
I/O, word clock I/O, MADI I/O, ADAT I/O and AES/EBU I/O.
BALANCED MICROPHONE / LINE INPUTS (XLR/TRS combo socket): Eight balanced full
range mic/line/inst inputs with 85 dB gain range.
ADAT IN (TOSLINK): Optical ADAT input (clock synchronization, monitoring, format conversion).
ADAT OUT (TOSLINK): Two optical ADAT outputs. These carry full 8 channels in S/MUX2
mode (96 kHz), and 4 channels at 176.4 / 192 kHz.
WORD IN (BNC): In menu Options – Clock the input can be set to be terminated with 75 Ohms.
WORD OUT (BNC): Standard word clock output.
MADI I/O optical: Standard optical MADI ports.
AES/EBU I/O (25-pin D-sub): The D-sub connector provides four AES/EBU outputs (AD sig-
nals) and four AES/EBU inputs (clock synchronization, monitoring, format conversion). The 25
pin D-sub connector is wired according to the widely spread Tascam standard (pinout see
chapter 13.1). The AES I/Os are transformer-coupled. The high sensitivity type input accepts all
common digital sources, even SPDIF.
USB 2.0: Windows: Firmware update. Mac OS X: Class Compliant audio interface and firmware
update. iPad: Class Compliant audio interface via Camera Connection Kit.
MIDI I/O (5-pin DIN): MIDI input and output via 5-pin DIN jacks. Used to remote control the OctaMic XTC, and to transmit MIDI data via MADI or USB.
IEC receptacle for power connection. The specially developed, internal hi-performance switch
mode power supply lets the OctaMic XTC operate in the range of 100V to 240V AC. It is shortcircuit-proof, has an integrated line-filter, is fully regulated against voltage fluctuations, and suppresses mains interference.
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User’s Guide OctaMic XTC © RME
4.2 Quick Start
After connection of all cables and power-on of the device, the configuration of the OctaMic XTC
starts in the menu SETUP – Options - Clock. Choose a clock source and a sample rate.
The next step is the GAIN setting. Press the desired SELECT button and adjust the gain with
the encoders, so that the two level meters do not show overload.
The digital output to send out the converted analog signal is defined in SETUP – Options – Digi-
tal Routing. Press encoder 2 to navigate downwards through the list, for example to ADAT Out.
By turning encoder 2 the signal source of the ADAT output can be set to Mic 1-8 (default).
The OctaMic XTC stores all settings before switching off, and sets them automatically when
switching on the next time. The storing process is triggered 5 seconds after the last change.
5. Accessories
RME offers several optional components for the OctaMic XTC:
Part Number Description
OK0050 Optical cable, Toslink, 0.5 m (1.7 ft)
OK0100 Optical cable, Toslink, 1 m (3.3 ft)
OK0200 Optical cable, Toslink, 2 m (6.6 ft)
OK0300 Optical cable, Toslink, 3 m (9.9 ft)
OK0500 Optical cable, Toslink, 5 m 16.4 ft)
OK1000 Optical cable, Toslink, 10 m (32.8 ft)
BO25MXLR4M4F1PRO Digital Breakout Cable Pro, AES/EBU
25-pin D-sub to 4 x XLR male + 4 x XLR female, 1m (3.3 ft)
BO25MXLR4M4F3PRO same, 3 m (9.9 ft)
BO25MXLR4M4F6PRO same, 6 m (19.8 ft)
BO25M25M1PRO Digital D-sub cable Pro, AES/EBU
25-pin D-sub to 25-pin D-sub, 1m (3.3 ft)
BO25M25M3PRO same, 3m (9.9 ft)
BO25M25M6PRO same, 6m (19.8 ft)
BOB32 BOB-32, Universal breakout box, 19" 1 Unit height. The professional
digital AES/EBU breakout solution
User’s Guide OctaMic XTC © RME
9
6. Warranty
Each individual OctaMic XTC undergoes comprehensive quality control and a complete test at
IMM before shipping. The usage of high grade components should guarantee a long and trouble-free operation of the unit.
If you suspect that your product is faulty, please contact your local retailer.
Audio AG grants a limited manufacturer warranty of 6 months from the day of invoice showing
the date of sale. The length of the warranty period is different per country. Please contact your
local distributor for extended warranty information and service. Note that each country may
have regional specific warranty implications.
In any case warranty does not cover damage caused by improper installation or maltreatment replacement or repair in such cases can only be carried out at the owner's expense.
No warranty service is provided when the product is not returned to the local distributor in the
region where the product had been originally shipped.
Audio AG does not accept claims for damages of any kind, especially consequential damage.
Liability is limited to the value of the OctaMic XTC. The general terms of business drawn up by
Audio AG apply at all times.
7. Appendix
RME news and further information can be found on our website:
http://www.rme-audio.com
Distributor: Audio AG, Am Pfanderling 60, D-85778 Haimhausen, Tel.: (49) 08133 / 918170
Manufacturer:
IMM Elektronik GmbH, Leipziger Strasse 32, D-09648 Mittweida
Trademarks
All trademarks and registered trademarks belong to their respective owners. RME, Hammerfall
and DIGICheck are registered trademarks of RME Intelligent Audio Solutions. QuickGain, SyncAlign, SyncCheck, SteadyClock and OctaMic XTC are trademarks of RME Intelligent Audio
Solutions. Alesis and ADAT are registered trademarks of Alesis Corp. ADAT optical is a trademark of Alesis Corp. S/MUX is copyright Sonorus. Microsoft and Windows are registered trademarks of Microsoft Corp. Apple, iPad and Mac OS are registered trademarks of Apple Inc.
Copyright © Matthias Carstens, 12/2013. Version 1.2
All entries in this User's Guide have been thoroughly checked, however no guarantee for cor-
rectness can be given. RME cannot be held responsible for any misleading or incorrect information provided throughout this manual. Lending or copying any part or the complete manual or its
contents as well as the software belonging to it is only possible with the written permission from
RME. RME reserves the right to change specifications at any time without notice.
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User’s Guide OctaMic XTC © RME
CE / FCC Compliance
CE
This device has been tested and found to comply with the limits of the European Council Directive on the approximation of the laws of the member states relating to electromagnetic compatibility according to RL2004/108/EG, and European Low Voltage Directive RL2006/95/EG.
FCC
This equipment has been 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
instructions, 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 harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
RoHS
This product has been soldered lead-free and fulfils the requirements of the RoHS directive.
ISO 9001
This product has been manufactured under ISO 9001 quality management. The manufacturer,
IMM Elektronik GmbH, is also certified for ISO 14001 (Environment) and ISO 13485 (medical
devices).
Note on Disposal
According to the guide line RL2002/96/EG (WEEE – Directive on Waste
Electrical and Electronic Equipment), valid for all european countries, this
product has to be recycled at the end of its lifetime.
In case a disposal of electronic waste is not possible, the recycling can
also be done by IMM Elektronik GmbH, the manufacturer of the OctaMic
XTC.
For this the device has to be sent free to the door to:
IMM Elektronik GmbH
Leipziger Straße 32
D-09648 Mittweida
Germany
Shipments not prepaid will be rejected and returned on the original sender's costs.
User’s Guide OctaMic XTC © RME
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User’s Guide OctaMic XTC © RME
User’s Guide
OctaMic XTC
Usage and Operation
User’s Guide OctaMic XTC © RME
13
8. Front Panel Controls
8.1 Select Keys
The four channel keys labeled SELECT offer quick selection and setting of the gain. After
pressing one of the four keys the page Mic Gain of the corresponding pair is shown in the display. The gain can now be adjusted immediately with encoder 1 and 2. This method guarantees
an immediate access to the most important parameters of the device, and makes 8 separate
encoders (pots) on the front panel obsolete.
For a similar reason and despite the informative display the front panel still has dedicated LEDs
for signal and overload (bi-color SIG LED). If overload/distortion is caused by too high gain one
simply hits the key SELECT where the overload is displayed, to then reduce the gain with encoder 1 or 2 – lightning quick and intuitive.
Apart from the group function the typical pairs of channels (1/2, 3/4…) can be adjusted simultaneously directly from the front panel. Press and hold the SELECT key so that the display shows
two lines between the encoder symbols 1 and 2. This so called Linked or Ganging mode operates in a relative way, different gains of either channel are retained when changing them both.
8.2 Encoders
The encoders can be turned endlessly, but also pressed, adding a key function. Their current
functionality is clearly shown in the display. In general turning them either changes the current
parameter, or moves the selection/cursor horizontally to the next page. Pressing the encoders
moves the selection/cursor vertically, up with 1 and down with 2, as indicated by the arrows in
the display.
On the gain pages brought up by the channel’s SELECT key pressing encoder 1 and 2 activates the AutoSet function. The label AS in the display changes from light gray to solid black
(see picture in chapter 4.1).
Example: Press the key SETUP. The menu Setups is now
shown the display. The number 1 within the circle on the
right side indicates that by turning encoder 1 more pages
are available. In this case only one, Options. Setups itself
has no further sub-pages. By pressing encoder 2 the
cursor moves down, by pressing encoder 1 it moves back
up. On a selected field or entry, the 2 to the right indicates
that the current parameter can be changed by turning
encoder 2.
On the Options page several sub-pages exist, therefore a 2 is shown on the right side of those
sub-pages. By turning encoder 2 the pages Clock, MIDI Sources, General Settings and Digital
Routing are shown. The arrow under the 2 indicates that pressing encoder 2 the corresponding
page is entered, and settings can be changed then.
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User’s Guide OctaMic XTC © RME
8.3 Menu Keys
The keys to the left of the display simplify navigation, as they directly jump to specific areas.
PHONES
This key brings up the Phones 1 screen, where the output
level can be directly controlled with encoder 1, and the
signal source with encoder 2. Pressing PHONES again
changes to Phones 2.
The volume of Phones 1/2 can be adjusted directly with
encoder 1 and 2 when the level meter overview is shown in
the display. In that case there is no choice for the signal
source.
GROUPS
The key GROUPS brings up the group screen. Encoder 1 changes between Group All and
Group 1 to 4. Encoder 2 changes all gains of the corresponding group simultaneously. Their
relative values (the differences of gains between channels) are retained.
Group All
Current group settings are ignored, all 8 channels are affected by gain changes.
Group 1 to 4
The channels not assigned to any group are shown in light
gray to the left (channel number) and right (current gain).
The level meter is always active for all channels. The
OctaMic XTC has 8 channels, therefore no more than 4
groups with 2 channels each can be defined. The group
assignment is defined in the menu CHANNEL - Gain
Group.
Pressing encoder 2 activates the currently selected group,
another push activates the AutoSet function (AS) for this
group. Pressing the encoder a third time switches both
functions off.
CHANNEL
This key gives access to the settings of the analog inputs
Mic 1 to 8, and the analog outputs Phones 1 and 2.
SETUP
Direct access to Setups and Options, the latter having the
sub-pages Clock , MIDI Sources, General Settings, MADI
Settings and Digital Routing. A screenshot is shown on the
left page (chapter 8.2).
User’s Guide OctaMic XTC © RME
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8.4 Channel Menu
Mic 1 to 8, Settings, has the following entries:
Pre Amp Gain
Sets the current gain/amplification. Choices are 0 dB, and +10 up to +65 dB in steps of 1 dB.
AutoSet Gain
Automatic overload protection by gain reduction in case of overload. AutoSet tries to keep a
headroom of 6 dB. Levels higher than -6 dBFS will permanently reduce the gain. To check set
the channels to a high gain and apply an input signal. The displayed gain will quickly decrease
to a gain that is appropriate. While AutoSet in the XTC is not exactly the same as in the RME
Micstasy (with extreme overloads distortion will occur for the fraction of a second before the
level is set correctly), it works quite well in real-world applications and will prevent distorted
recordings reliably.
AutoSet can be activated in CHANNEL as well as on the gain pages brought up by the channel’s SELECT key: a push on encoder 1 and 2 activates AutoSet. The label AS in the display
changes from light gray to black.
With grouped channels the field AutoSet Gain is grayed
out, activating AutoSet is then done in the Groups page.
To avoid shifts in panorama AutoSet should work ganged
with stereo channels, so that gain changes of one channel
are also applied to the other one. This function is part of the
groups and thus available for up to 8 channels
simultaneously. This also means that for using ganged
AutoSet a stereo pair (like Mic1/2) has to be defined and
activated explicit as group.
As soon as AutoSet reduces the gain the label AS, shown in the front display, changes its color
from black to blue.
Gain Group
Assigns channels to one of four groups. Choices are None or 1 to 4.
+48V
Activates phantom power for condenser microphones or special accessories (Alva Test Plug).
Phantom power should only be activated when condenser microphones that require such a
power supply are used, and only in the specific channel. Additionally always make sure the
microphone is plugged in first before the phantom power is switched on. The OctaMic XTC
turns on the phantom power smoothly (soft start). Connecting and disconnecting microphones
while phantom power is active causes a high voltage surge, which can destroy the sensitive
microphone input stage.
Phantom power is only applied to the XLR socket, the inner TRS contacts do not carry any voltage.
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User’s Guide OctaMic XTC © RME
PAD (Channels 1-4)
Channels 1 to 4 have an optional attenuator directly at the input stage. PAD reduces the signal
level by -20 dB, avoiding overload when feeding high-level line signals. XLR and TRS socket
are active at the same time, no switching between them is required. An active PAD is signaled
by an LED on the front panel.
Instrument (Channels 5-8)
Channels 5 to 8 have a high impedance instrument input. This function switches from the XLR
to the TRS socket. The current state is signaled by an LED on the front panel.
Phase Invert
Phase changes the polarity (180°). Useful to fix wrongly soldered cables or to eliminate sound
and phase errors.
Mute
Muting a channel. Allows to remove a signal without the need to change the current gain.
Phones 1 and 2 has the following entries:
Volume
Sets the output level from -64 dB up to +6 dB, in steps of 1 dB. Mute is also available.
Balance
Adjustable from -1 (left) through 0 (middle) to +1 (right).
Source
Selection of the signal source. Play 1/2 and 3/4 relate to
software playback in Class Compliant mode. Mic 1 to 8
provides monophonic monitoring of the selected input, Mic
1/2 to 7/8 the same in stereo. Mic 1-8S performs a
mixdown of all 8 input channels to the Phones output.
Next choices are single channel and stereo channels of
the digital inputs ADAT, AES and MADI.
Mute
Mute of the phones output, without the need to change the current volume setting..
Phase Invert
Available settings are Off, Both, Left and Right.
Output Level
Can be set to Low or High.
User’s Guide OctaMic XTC © RME
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8.5 Setup Menu
SETUP offers several options to configure the device. Encoder 1 changes between Options and
Setups. The sub-menus in Options, General Settings, Digital Routing, Clock and MIDI Sources,
are accessed with encoder 2.
Pressing any of these keys again exits the current menu and returns to the level meter overview.
8.5.1 Options Menu
The page Clock has the following entries:
Clock Source
Choices are INT (Internal, Master), WCK (Wordclock), AES 1 to 4, MADI and ADAT.
Sample Rate
Choices are 32, 44.1, 48, 64, 88.2, 96, 128, 176.4 and 192
kHz. Setting the correct sample rate is even necessary in
slave mode, with external clocking via word or one of the
digital inputs. Only with AES the real current sample rate
can be detected. With the other S/MUX formats the user
has to inform the unit, whether the input signal is in the
single, double or quad speed range.
WCK Alw. Singl
Word Clock Always Single Speed. Choices are On or Off.
WCK Term.
Word clock termination for the word clock input – On or Off.
The page General Settings has the following entries:
MIDI Device ID
Adjustable from 0 to 7.
MIDI Contr. Thru
On or Off.
LCD Contrast
Adjustable from -20% to +20%. Default is 0%.
SW-Version
Shows the current version number and date of the internal
software.
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User’s Guide OctaMic XTC © RME
The page MADI Settings has the following entries:
Delay Comp.
Delay Compensation. Choices are Off, Manual, Auto-ID,
Auto-CA (Channel Assignment)
Compens. ID
Manual setting of the Compensation ID, from 1 to 8.
Grayed out when Auto-ID or Auto-CA are active.
MADI Format
Can be set to 56 or 64 channels.
MADI Frame
Can be set to 48k or 96k.
These options are explained in detail in chapter 10.
The page Digital Routing has the following entries:
ADAT Out
Sets the signal source of the ADAT output. Choices are Mic 1-8, ADAT In, AES In, MADI In in
groups of eight, Playback 1-8, 5-12, 9-16,13-20, 17-24.
ADAT 2 Out
See ADAT Out.
AES Out
See ADAT Out.
MADI 1-8 etc
See ADAT Out. All eight 8-channel groups of the MADI
output can be freely assigned to the above signal sources.
Recording
Inputs 1 to 8 are fixed to the USB (Class Compliant mode) recoding channels 1 to 8. The Class
Compliant mode of the XTC provides a total of 24 recording and playback channels each.
Channels 9 to 24 are freely assignable in this menu:
Rec. 9-16
Choices are Mic 1-8, ADAT In, AES In, MADI In in groups of 8 channels
Rec. 17-24
Choices are Mic 1-8, ADAT In, AES In, MADI In in groups of 8 channels
User’s Guide OctaMic XTC © RME
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