Owner’s Manual
Complete reCording solution
IMPORTANT SAFETY INSTRUCTIONS
WARNING FOR YOUR PROTECTION
READ THESE INSTRUCTIONS:
KEEP THESE INSTRUCTIONS
HEED ALL WARNINGS
FOLLOW ALL INSTRUCTIONS
The symbols shown above are internationally accepted symbols
that warn of potential hazards with electrical products. The
lightning flash with arrowpoint in an equilateral triangle means
that there are dangerous voltages present within the unit. The
exclamation point in an equilateral triangle indicates that it is
necessary for the user to refer to the owner’s manual.
These symbols warn that there are no user serviceable parts
inside the unit. Do not open the unit. Do not attempt to service
the unit yourself. Refer all servicing to qualified personnel.
Opening the chassis for any reason will void the manufacturer’s
warranty. Do not get the unit wet. If liquid is spilled on the
unit, shut it off immediately and take it to a dealer for service.
Disconnect the unit during storms to prevent damage.
SAFETY INSTRUCTIONS
NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD.
WARNING: THIS APPLIANCE MUST BE EARTHED. CONNECT ONLY TO A
MAINS SOCKET OUTLET WITH PROTECTIVE EARTHING CONNECTION.
The cores in the mains lead are coloured in accordance with the following code:
GREEN and YELLOW - Earth BLUE - Neutral BROWN - Live
As colours of the cores in the mains lead of this appliance may not
correspond with the coloured markings identifying the terminals in your
plug, proceed as follows:
•
The core which is coloured green and yellow must be connected to the
terminal in the plug marked with the letter E, or with the earth symbol,
or coloured green, or green and yellow.
•
The core which is coloured blue must be connected to the terminal
marked N or coloured black.
•
The core which is coloured brown must be connected to the terminal
marked L or coloured red.
This equipment may require the use of a different line cord, attachment
plug, or both, depending on the available power source at installation.
If the attachment plug needs to be changed, refer servicing to qualified
service personnel who should refer to the table below. The green/yellow
wire shall be connected directly to the units chassis.
WARNING: If the ground is defeated, certain fault conditions in
the unit or in the system to which it is connected can result in full
line voltage between chassis and earth ground. Severe injury or
death can then result if the chassis and earth ground are touched
simultaneously.
DO NOT USE THIS APPARATUS NEAR WATER
THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING
LIQUID AND NO OBJECT FILLED WITH LIQUID, SUCH AS VASES, SHALL
BE PLACED ON THE APPARATUS.
CLEAN ONLY WITH A DRY CLOTH.
DO NOT BLOCK ANY OF THE VENTILATION OPENINGS. INSTALL IN
ACCORDANCE WITH THE MANUFACTURER’S INSTRUCTIONS.
DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS, HEAT
REGISTERS, STOVES, OR OTHER APPARATUS (INCLUDING AMPLIFIERS)
THAT PRODUCE HEAT.
ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE
MANUFACTURER.
UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN
UNUSED FOR LONG PERIODS OF TIME.
Do not defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding
type plug has two blades and a third grounding prong. The wide blade or
third prong are provided for your safety. If the provided plug does not fit
your outlet, consult an electrician for replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched particularly at
plugs, convenience receptacles, and the point where they exit from the
apparatus.
Use only with the cart stand, tripod bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury from tip-over.
Refer all servicing to qualified service personnel. Servicing is required when
the apparatus has been damaged in any way, such as power-supply cord
or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
POWER ON/OFF SWITCH: For products provided with a power switch, the
power switch DOES NOT break the connection from the mains.
MAINS DISCONNECT: The plug shall remain readily operable. For rackmount or installation where plug is not accessible, an all-pole mains
switch with a contact separation of at least 3 mm in each pole shall be
incorporated into the electrical installation of the rack or building.
FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEPTACLE:
Replace fuse with same type and rating only.
MULTIPLE-INPUT VOLTAGE: This equipment may require the use of a
different line cord, attachment plug, or both, depending on the available
power source at installation. Connect this equipment only to the power
source indicated on the equipment rear panel. To reduce the risk of fire or
electric shock, refer servicing to qualified service personnel or equivalent.
This Equipment is intended for rack mount use only.
IMPORTANT SAFETY INSTRUCTIONS
Section Title
ELECTROMAGNETIC
COMPATIBILITY
This unit conforms to the Product
Specifications noted on the Declaration
of Conformity. Operation is subject
to the following two conditions:
•
this device may not cause harmful
interference, and
•
this device must accept any interference
received, including interference that may
cause undesired operation.
Operation of this unit within significant
electromagnetic fields should be avoided.
•
use only shielded interconnecting cables.
U.K. MAINS PLUG WARNING
A molded mains plug that has been cut off
from the cord is unsafe. Discard the mains
plug at a suitable disposal facility.
NEVER UNDER ANY
CIRCUMSTANCES SHOULD YOU
INSERT A DAMAGED OR CUT
MAINS PLUG INTO A 13 AMP
POWER SOCKET.
Do not use the mains plug without the fuse
cover in place. Replacement fuse covers
can be obtained from your local retailer.
Replacement fuses are 13 amps and MUST
be ASTA approved to BS1362.
DECLARATION OF
CONFORMITY
Manufacturer’s Name: Lexicon Professional
Manufacturer’s Address: 8760 S. Sandy Pkwy.
Sandy, UT 84070, USA
Declares that the product:
Product name: Lexicon Alpha™
Note: Product name may be
suffixed by the letters-EU.
Product option: None
Conforms to the following Product Specifications:
Safety: IEC 60065 (2002)
EMC: EN 55013 (2001 + A1)
EN 55020 (1998)
Supplementary Information:
The product herewith complies with the requirements
of the Low Voltage Directive 72/23/EEC and the
EMC Directive 89/336/EEC as amended by Directive
93/68/EEC.
Vice-President
of Engineering - MI
8760 S. Sandy Parkway
Sandy, Utah 84070, USA
Date: February 2, 2006
European Contact: Your local Lexicon
Professional Sales
and Service Office or
Harman Music Group
8760 S. Sandy Pkwy.
Sandy, UT 84070 USA
Ph: (801) 566-8800
Fax: (801) 568-7583
Service Info/Warranty
SERvICE INFO
If you require technical support, contact Lexicon® Professional Customer Service.
Be prepared to accurately describe the problem. Know the serial number of your unit,
found on a sticker attached to the bottom of the Alpha Studio™. If you have not already
taken the time to fill out your warranty registration card and send it in, please do so
now.
Before you return a product to the factory for service, we recommend you refer to
the manual. Make sure you have correctly followed installation steps and operation
procedures. If you are still unable to solve a problem, contact our Customer Service
Department at (801) 568-7660 for consultation. If you need to return a product
to the factory for service, you MUST contact Customer Service to obtain a Return
Authorization Number. No returned products will be accepted at the factory without a
Return Authorization Number. Please refer to the Warranty information on the following page, which extends to the first end-user. After expiration of the warranty, a reasonable charge will be made for parts, labor, and packing if you choose to use the factory
service facility. In all cases, you are responsible for transportation charges to the factory. Lexicon Professional will pay return shipping if the unit is still under warranty.
Use the original packing material if it is available. Mark the package with the name
of the shipper and with these words in red: DELICATE INSTRUMENT, FRAGILE! Insure
the package properly. Ship prepaid, not collect. Do not ship parcel post.
WARRANTY
This warranty is valid only for the original purchaser and only in the United States.
1. The warranty registration card that accompanies this product must be mailed (or
online regisration must be completed at www.lexiconpro.com) within 30 days after
purchase date to validate this warranty. Proof-of-purchase is considered to be the
burden of the consumer.
2. Lexicon Professional warrants this product, when bought and used solely within
the U.S., to be free from defects in materials and workmanship under normal use
and service.
3. Lexicon Professional’s liability under this warranty is limited to repairing or, at
our discretion, replacing defective materials that show evidence of defect, provided
the product is returned to Lexicon Professional WITH RETURN AUTHORIZATION
from the factory, where all parts and labor will be covered up to a period of 1 year.
A Return Authorization number must be obtained from Lexicon Professional by
telephone. The company shall not be liable for any consequential damage as
a result of the product's use in any circuit or assembly.
4. Lexicon Professional reserves the right to make changes in design or make additions to or improvements upon this product without incurring any obligation to
install the same additions or improvements on products previously manufactured.
5. The foregoing is in lieu of all other warranties, expressed or implied, and Lexicon
Professional neither assumes nor authorizes any person to assume on its behalf any
obligation or liability in connection with the sale of this product. In no event shall
Lexicon Professional or its dealers be liable for special or consequential damages or
from any delay in the performance of this warranty due to causes beyond its control.
4
TAblE OF CONTENTS
INTROdUCTION ......................................... 8
FEATURES ..................................................................................8
UNPACKING THE ALPHA STUDIOTM ............................................. 9
COMPUTER MINIMUM REqUIREMENTS ......................................9
Windows® ............................................................................................................. 9
®
Macintosh
THE FRONT PANEL .....................................................................10
¼" Instrument Input Jack .....................................................................................10
Line 1/Inst .............................................................................................................. 10
Peak LEDs ..............................................................................................................10
Line 2/Mic .............................................................................................................. 10
Monitor Assign ....................................................................................................... 10
Monitor Mix .......................................................................................................... 10
USB LED ................................................................................................................. 11
Output Level ........................................................................................................... 11
1
⁄8" Headphone Output Jack .................................................................................. 11
THE REAR PANEL ....................................................................... 12
USB Port ................................................................................................................ 12
Line In 1-2 .............................................................................................................12
Mic Input ............................................................................................................... 12
¼" Left/Right Line Outputs ...................................................................................12
RCA Left/Right Line Outputs ................................................................................. 12
............................................................................................................ 9
Table of Contents
CONNECTINg TO ThE AlPhA STUdIO ........ 13
MONITORING CONNECTIONS ................................................... 13
Connecting Headphones........................................................................................ 13
Connecting to Monitor Speakers ........................................................................... 13
Connecting RCA Ouptuts for Monitoring to a Home Stereo ................................13
ABOUT RECORDING CONNECTIONS.......................................... 14
To Connect a Microphone ..................................................................................... 14
To Connect a Line Level Source ............................................................................14
To Connect an Instrument .................................................................................... 14
MIxDOWN CONNECTIONS .......................................................15
Connecting to an External Recorder .................................................................... 15
Mixing Within Cubase® LE 4 ................................................................................ 15
CONNECTIONS DIAGRAM .........................................................16
5
Table of Contents
WINDOWS® SOFTWARE SETUP ..................................................16
Windows® Vista and XP ......................................................................................... 16
MACINTOSH® SOFTWARE SETUP ............................................... 17
Mac OS ................................................................................................................... 17
USINg ThE lExICON® AlPhA STUdIO™ ...... 18
Section I – Recording Audio With the Alpha Studio™ ...................................... 19
A. Recording Using the Microphone/Line Input........................................... 19
B. Recording a Guitar using the Instrument Input ..................................... 26
Section II – Using Software Input Monitoring .................................................... 28
Section III – Adjusting the Buffer Settings........................................................... 31
A. Adjusting the Buffers in Windows® XP ....................................................31
B. Adjusting the Buffers in Mac OSX ............................................................ 32
SPECIFICATIONS ........................................ 34
SIgNAl ROUTINg dIAgRAM ..................... 35
6
7
Introduction
INTROdUCTION
Congratulations on your purchase of the Lexicon® Alpha Desktop Recording
Studio™. The Alpha Studio is a complete package of hardware and software that turns
your USB-equipped computer into a professional multitrack recording workstation.
Whether you use it for high-quality stereo location recording with a laptop computer,
or for multitrack overdubbing and mixing in a home studio desktop system, the Alpha
Studio hardware provides the professional-quality inputs and outputs, metering, and
level controls that computer sound cards or built-in audio connections lack.
So you can make full use of the Alpha Studio right away, we’ve included the popular
Steinberg® Cubase® LE 4 production suite software for PC and Mac® computers.
Cubase LE 4 offers integrated multi-track recording, editing and mixing of up to 48
audio tracks, 64 MIDI tracks, VST® Instruments support, VST plug-in effects support, and an array of additional features. Lexicon’s Pantheon™ VST reverb plug-in
is a major feature of the Alpha Studio package, providing the lush Lexicon reverbs
that have been used on professional recordings for over thirty years. Alternatively, the
Lexicon Alpha Studio may be used as an interface with almost any other major audio
recording software you may have, such as Steinberg Nuendo®, Cubase SX®, MOTU®
Digital Performer®, Garage Band®, Cakewalk® Sonar™, and many others.
FEATURES
THE ALPHA DESKTOP RECORDING STUDIO™
PROvIDES THE FOLLOWING:
• 4 analog audio inputs
• 1 - XLR mic input with extremely low noise preamp and 50 dB gain
• 2 - ¼" analog RF filtered TRS active-balanced line inputs
• 1 - ¼" high-impedance analog instrument input
• 2 - RCA outputs
• 2 - ¼" analog TRS active line outputs
• High powered headphone amplifier
• 24-bit A/D and D/A converters, supporting sample rates of 44.1 kHz and 48 kHz
• Zero-latency analog record monitoring with adjustable balance between
Direct and Playback Signals
• Stereo and Mono input source monitoring
• 100% USB Powered
8
Unpacking the Alpha Studio
UNPACkINg ThE AlPhA STUdIO™
The Alpha Studio™ is shipped in one carton, containing the Alpha Studio Interface
hardware, Steinberg® Cubase® LE 4 and Lexicon® Pantheon™ plug-in software for
Windows® and Macintosh® based systems. After unpacking, save all the packaging
materials in case you ever have to ship the unit. Thoroughly inspect the Alpha Studio
and packing materials for signs of damage. Report any shipment damage to the carrier
that delivered the product or dealer from whom you purchased the product at once.
THE FOLLOWING ITEMS ARE INCLUDED:
• Alpha desktop audio interface hardware
• Installer DVD-ROM containing Cubase LE 4 Recording Software, USB drivers
and the Lexicon Pantheon Reverb Plug-in for Mac® and Windows®
• USB Connector Cable
• This Owner’s Manual
• Lexicon Pantheon Reverb Plug-in User’s Guide
• Lexicon Professional warranty registration
NOTE: The full Cubase LE 4 manual is located “online” on the software DVD
COMPUTER MINIMUM REqUIREMENTS
Powerful software for audio recording requires a powerful computer with the right
operating system software, processor, memory, and hard drive space. Most computers
currently sold already meet these requirements, or can be upgraded to be compatible
with the Lexicon Alpha Desktop Recording Studio. As with all such systems, adding
more RAM than the minimum will allow you to do more processing and improve performance, and more disk space will allow you to record more tracks for a longer time.
See the Alpha Studio Software Installation Guide and the Cubase LE 4 manual on the
software installation DVD for more information.
TM
®
WINDOWS
•
•
•
•
vISTA, xP HOME, OR xP PROFESSIONAL
Pentium / Athlon 1.4 GHz
512 MB RAM
Display Resolution 1024 x 768 pixels
Windows DirectX compatible audio hardware; ASIO compatible audio hardware
recommended for low latency performance
DVD-ROM drive
•
Internet access required for license activation
•
MACINTOSH
•
•
•
•
•
•
•
®
Power Mac G4 1 GHz or Core Solo 1.5 GHz
512 MB RAM
OS X Version 10.4
Display Resolution 1024 x 768 pixels
CoreAudio compatible audio hardware
DVD-ROM drive
Internet access required for license activation
9
Monitor Mix
Output Level
Instrument
Monitor
Stereo Mono
Peak Peak USB
Direct Playback
1/4˝ Instrument Input Jack
Peak LEDs
Line 1 / Instrument Line 2 / Microphone
Monitor Assign
Monitor Mix Control
Output Level
1/8˝ Headphone Output Jack
Line 1/Inst
Line 2/Mic
The Front Panel
For the cleanest
recording, adjust
the Gain so the
Peak LED flashes
only occasionally,
on the loudest part
of the performance.
ThE FRONT PANEl
The Alpha Studio™ front panel offers the following features:
¼" INSTRUMENT INPUT JACK
This ¼" jack accepts unbalanced, low-level, high impedance instrument sources such
as electric guitar, acoustic guitar with a pickup, and electric bass. The input gain
is adjusted using the Line 1/Inst knob on the front panel. When an instrument is
plugged into this input, it disables the Line 1 audio input on the rear panel.
LINE 1/INST
This knob adjusts the Line 1 and Instrument Input gain.
PEAK LEDS
These LEDs light when the input signal is within 5dB of analog clipping. If the Peak
LEDs flicker occasionally, the signal is approaching clipping levels, but does not necessarily indicate distortion or actual clipping.
LINE 2/MIC
This knob adjusts the Line 2 and Mic Input gain.
MONITOR ASSIGN
This button selects whether a pair of analog audio sources will be heard in stereo or
mono in the Direct Monitor Mix. In Stereo mode, the left inputs (Line 1/Inst) are routed to the left channel and right inputs (Line 2/Mic) are routed to the right channel.
DO NOT TURN
DOWN A GAIN
CONTROL TO
GET THE RIGHT
MIX IN YOUR
HEADPHONES OR
MONITORS WHILE
RECORDING. USE
THE Monitor
Mix CONTROL
FOR THIS
PURPOSE.
In Mono mode, you’ll hear all inputs in the center of the Direct Monitor Mix through
the Headphone or Line outputs.
When the Monitor switch is in Mono, it does not change the signals going to the computer in any way—they will still be separate and stereo in the computer.
MONITOR MIx
The Alpha Studio gives you the ability to hear your analog input signals directly and
immediately while recording, without having to adjust levels in software, and before
the delay caused by digital converters and computer recording latency. This zero-latency analog monitoring is controlled by the Monitor Mix knob, which you can use to
adjust the blend between the Alpha Studio’s live analog inputs (called “Direct”) and
any audio coming back from the computer via USB (“Playback”). To adjust the playback mix coming back from the computer (previous tracks, effect returns etc.), use
10
the faders on the Mixer screen of the software. To hear only the live source input signals plugged into the Alpha StudioTM, turn the Monitor Mix knob fully left to Direct.
To hear only the mix from the computer, turn the Monitor Mix knob fully right to
Playback. The output from the Monitor Mix control is routed directly to the Line and
Headphone outputs. This ability to easily control the relative levels of computer audio
playback and latency-free live analog inputs is very useful when overdubbing.
USB LED
When the blue USB LED is on, it indicates the Alpha Studio is being powered by your
computer and audio signals can pass in and out of the system.
OUTPUT LEvEL
This knob controls the overall output level of the Alpha Studio’s Line and Headphone
outputs.
1
⁄8" HEADPHONE OUTPUT JACK
The high powered Headphone output accommodates stereo headphones with an 1⁄8"
stereo plug.
The Front Panel
11
Line Out
L R
Line Out
L R
Line In
1 2
Mic
Alpha Studio is
a trademark of
Lexicon Pro, Inc.
Line In 1-2
USB Port
1/4” Left/Right Line Outputs
Mic Input RCA Left/Right Line Outputs
The Rear Panel
ThE REAR PANEl
The Alpha Studio™ rear panel offers the following features:
USB PORT
The USB Port is used to connect the Alpha Studio to your computer and provides the
Alpha Studio hardware with power. A standard USB cable is included. The Alpha Studio
supports USB 2.0 full speed.
LINE IN 1-2
These ¼" inputs can accept both balanced (3-conductor TRS) and unbalanced (2conductor TS) line level audio sources. The input gain is adjusted using the Line
1/Inst and Line2/Mic gain knobs on the front panel.
Note: When a cable is connected to the Line 2 input, the Mic input is disabled.
MIC INPUT
This balanced XLR input features a high-quality mic preamp designed specifically for
low-impedance professional dynamic and self-powered condenser microphones. The
input gain is adjusted using the Line 2/Mic gain knob on the front panel, with 50 dB
of gain at the maximum setting.
Note: When a cable is connected to the Instrument input on the front panel, the
Line 1 input is disabled.
¼" LEFT/RIGHT LINE OUTPUTS
These outputs support balanced TRS or unbalanced TS ¼" connections. These
outputs can be connected to a mixing board, power amplifier, powered studio monitors,
recorder, or another line level input.
RCA LEFT/RIGHT LINE OUTPUTS
These outputs support RCA connections. These outputs can be connected to a mixing
board, power amplifier, powered studio monitors, recorder, or another line level input.
12
Connecting to the Alpha Studio
CONNECTINg TO ThE AlPhA
STUdIO
The Alpha StudioTM is both a 2 x 2 x 2 mixer and a USB audio interface that can be
used in a variety of audio setups. This section describes how to make basic connections
for the following applications:
• Monitoring Audio
• Recording Audio
• Connecting a Recorder for Mixdown
MONITORINg CONNECTIONS
The Alpha Studio allows you to monitor audio from both the hardware inputs (Direct)
and from the computer (Playback). Use the Monitor Mix control to balance
between the direct audio and playback audio from your computer (For a complete
description of the Monitor Mix control, see page 10).
You can listen to (monitor) the audio through either the
the front panel, through studio monitors using the ¼" or RCA L/R Line Out jacks
on the rear panel, or both. The output level of both the L/R Line Out jacks and the
Headphone jack are controlled with the Output Level knob on the front panel.
Alpha Studio’s ¼" L/R Line Outputs have a nominal output of +4dBu, and support
both balanced (TRS) or unbalanced (TS) connections.
CONNECTING HEADPHONES:
1. Connect headphones to the Headphone jack located on the front panel of the
Alpha Studio. The Headphone jack accepts an 1⁄8" TRS connector.
2. Adjust headphone volume with the Output Level knob.
TM
1
⁄8" Headphone jack on
CONNECTING TO MONITOR SPEAKERS:
1. Using ¼" cables (balanced TRS cables are recommended), connect the L/R Line
Out jacks on the rear panel of the Alpha Studio to the appropriate inputs on your
mixer, power amp, or powered monitors.
2. Adjust the Alpha Studio's output volume with the Output Level knob. If using
both headphones and monitor speakers, adjust the level of the external power amp
or speakers using their gain controls after you’ve set the desired level in your headphones.
CONNECTING RCA OUTPUTS FOR MONITORING TO A HOME STEREO
Connect the RCA Line Out 1-2 jacks on the rear panel of the Alpha Studio to the
appropriate inputs on your stereo, typically the Tape In or Aux In jacks, using standard
RCA cables. Keep the Output Level knob on the Alpha Studio low at first, raising it
slowly to match the level of other units connected to the stereo.
13
About Recording Connections
AbOUT RECORdINg CONNECTIONS
Analog audio signals are created by microphones, synthesizers, mixers, and instruments with magnetic pickups.
Of these sources, microphones and magnetic instrument pickups have the lowest
output level, and generally require the most amplification. Keyboards, preamps, and
mixers output “line level” audio, which varies with each device between the -10 dBV
and +4 dBu standards.
TO CONNECT A MICROPHONE
Plug an XLR cable directly from a microphone into the Mic input on the Alpha
TM
Studio
rear panel. Only dynamic (non-powered) or self-powered condenser mics are
accepted.
NOTE: When using the Mic input, DO NOT plug a cable into the Line In 2 input.
Inserting a cable into the Line In 2 input disconnects the mic input internally.
TO CONNECT A LINE LEvEL SOURCE
Plug a ¼" TS (unbalanced) or TRS (balanced) cable directly from the line level
source into the desired Line In jack on the rear panel of Alpha Studio. Line level
sources include keyboards, drum machines, CD and cassette players, or external
microphone preamps and effects. If the line level source has something other than ¼"
outputs, cable adapters can be used.
TO CONNECT AN INSTRUMENT
Plug a standard ¼" TS (instrument) cable directly from the instrument into the
Instrument input jack on the front panel of Alpha Studio. Note that this will disable
the Line In 1 jack on the back panel.
Note: Plugging a cable into the Instrument input disconnects the Line In 1 input.
Plugging a cable into the Line In 2 input disconnects the Mic input.
14
MIxdOWN CONNECTIONS
After you record and mix your sessions in either Cubase® LE 4 or other recording
software, you may want to mix them down to a DAT, audio cassette, or other stereo
2-track recording device.
CONNECTIONS dIAgRAM
Macintosh Software Setup
MACINTOSh® SOFTWARE SETUP
You should consult the Software Installation Guide on the included DVD to ensure the
successful installation of the recording software and USB setup.
If you haven’t already installed the Cubase
software, please do so before continuing on to the next section.
MAC OS
A USB device must initialize itself with the host computer to operate correctly. The
simplest way to avoid problems is to connect the Alpha Studio to the USB port after the
computer is booted.
®
LE 4 and Lexicon Pantheon™ plug-in
17
Using the Lexicon® Alpha Studio™
USINg ThE lExICON® AlPhA
STUdIO™
1. Connect the included USB cable to your
computer and to the Alpha StudioTM
and start Cubase® LE 4. If you see the
warning shown here, click OK.
2. Once Cubase LE 4 opens, go to
Devices>Device Setup.
3. Under Devices, click on
VST Audio System
and select Alpha ASIO
(for PC) or Lexicon
Alpha In/Out (2) (for
Mac®) if it is not already
selected. Click on Switch
to select the driver, then
click OK.
18
Recording Audio with the Alpha Studio
Mic Input
Line In 1
SECTION I – RECORDING AUDIO WITH THE ALPHA STUDIO™
The diagram below shows how the Alpha Studio™ is connected for this particular
setup.
A. RECORDING USING THE MICROPHONE/LINE INPUT
TM
19
Recording Using the Microphone/Line Input
3. Select default and click OK.
4. Select a location to store the project (or use the default location) and click OK.
You may want to create a new folder for every new project.
20
Recording Using the Microphone/Line Input
To set the input of the track to record:
1. Click the Project menu and select Add Track > Audio. When the Add Audio Track
dialog appears, make sure the Configuration option is set to Mono and click OK.
2. Make sure the Show Inspector button , located in the upper left corner of
the screen is lit.
21
Recording Using the Microphone/Line Input
3. In the Inspector, click the Left - Stereo In box and select Stereo In - Right for
the track input source. (Stereo In - Left relates to Line 1/Inst, Stereo In - Right
relates to Line 2/Mic inputs.)
4. In the Audio 01 window, the Record Enable button should already be red.
If it isn't, click it so that it turns red.
22
Recording Using the Microphone/Line Input
5. In the Audio 01 window, make sure the Input Monitoring button is not lit.
23
Recording Using the Microphone/Line Input
To check the input level from the microphone or Line Input:
1. If you are using a mic and have connected the Alpha Studio™ to studio monitors,
turn them down or off to avoid feedback.
2. If you want to hear the audio source in headphones, turn up the Alpha Studio
Output Level knob and turn the Monitor Mix knob counter-clockwise
(towards the Direct side). Press the Monitor Assign button so it is in the
Mono position. This will let you hear output on both sides of your headphones
when recording only one microphone or line level source.
24
Recording Using the Microphone/Line Input
Rewind and Play Buttons
5. Turn the Alpha Studio™ Output Level knob to adjust the listening volume, and
make sure the Monitor Mix knob is somewhere in the middle between Direct and
Playback.
To overdub a second track:
1. Click the Project menu and select Add Track > Audio. When the Add Audio Track
dialog appears, make sure the Configuration option is set to Mono and click OK.
2. Click anywhere in the gray area (not on the buttons) of the Audio 02 window
you just added.
3. In the Inspector, click on the Left - Stereo In box and select Stereo In > Right
for the track input source. (Stereo In - Left relates to Line 1/Inst, Stereo In -
Right relates to Line 2/Mic inputs.)
4. In the Audio 02 window, the Record Enable button should already be red.
If it isn't, click it so that it turns red.
5. In the Audio 02 window, click the Input Monitoring button so that it is not
lit.
To set monitor levels for a comfortable listening level:
1. On the front of the Alpha Studio hardware, locate the Monitor Mix knob.
25
Instrument Jack
Monitor Button
Recording a Guitar Using the Instrument Input
B. RECORDING A GUITAR USING THE INSTRUMENT INPUT
This section explains how to record using the ¼" Instrument input jack on the front
panel.
1. Plug your electric, acoustic, or bass guitar into the Instrument input jack on the
front of the Alpha Studio™ hardware.
The Instrument input uses the same recording channel as the Line 1 input;
anything plugged into the ¼" Line 1 input jack on the back of the Alpha Studio
will not be recorded when a cable is connected to the ¼" Instrument input jack
on the front panel.
NOTE: This jack is intended for electric guitar and bass, or acoustic instrument
pickups, not line-level signals such as the output of keyboards or a direct out from a
guitar amplifier. For those, use the Line 1-2 input jacks on the back of the Alpha
Studio hardware.
2. Press the Monitor Assign button between Line 2/Mic and Monitor Mix
knobs so that it is in the Mono position.
3. Open Cubase LE 4, go to File and select New Project>Default, and a project
location. (See Section I for more information.)
4. Click the Project menu and select Add Track > Audio. When the Add Audio Track
dialog appears, make sure the Configuration option is set to Mono and click OK.
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To set the input of the track to record from the 1-2 USB channels:
1. Click anywhere in the gray area (not on the buttons) of the Audio 01 window.
2. In the Inspector, click on the Left - Stereo In box and select Stereo In > Left
for the track input source. (Stereo In - Left relates to Line 1/Inst, Stereo In -
Right relates to Line 2/Mic inputs.)
3. In the Audio 01 window, the
Using Software Input Monitoring
SECTION II - USING SOFTWARE INPUT MONITORING
The previous examples have turned off Cubase® LE 4’s Input Monitoring software
switches while recording tracks, and used the Monitor Mix knob on the front of the
Alpha Studio™ hardware to directly monitor an input without latency. Software monitoring lets you listen to software-based effects in real time and adjust the monitor mix
independently of the recording levels, but also introduces some latency (delay) into the
input signal. The amount of latency depends on the amount of buffers assigned in the
ASIO control panel. See page 31 for more information about adjusting buffer settings.
1. When using Cubase LE 4’s input software monitoring with the Alpha Studio, you
will want to set the Monitor Mix knob all the way to the Playback side.
2. Click the Input Monitoring button on the track you are recording to. You
will now be able to hear your input. Now you can try assigning an effect on the
input. This example assigns a Pantheon™ reverb.
3. Click the Track Edit button.
28
Using Software Input Monitoring
4. Left click on an Insert space and select Earlier VST Plug-ins, Lexicon®, and
Pantheon™.
5. Choose Large Hall from the drop down menu at the top of the Pantheon™ Edit
Window.
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Using Software Input Monitoring
6. Because this is an insert effect, move the Mix slider to 50% (see the Pantheon
manual for more details).
7. Change the level to about -52dB. Now you will record with the Lexicon® Pantheon
Reverb on your track.
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SECTION III - ADJUSTING THE BUFFER SETTINGS
Audio latency is the minimum time required for a computer to store recorded audio
from an audio interface into the recording application memory and playback that
Adjusting the Buffer Settings
B. ADJUSTING THE BUFFERS IN MAC® OSx
1. Open Cubase LE 4 and go to Devices>Device Setup.
2. Click on VST Audio System.
3. Click on Audio Buffer Size and select the Number of Samples.
4. When you are finished click OK.
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33
Specifications
SPECIFICATIONS
Microphone Input: Female XLR Pin 2 Hot
Input Impedance: 600 Ohms balanced
GAIN: +50 dB
EIN: −115 dB A-weighted @ +50dB gain (150 Ohm source impedance)
Maximum Input Level: –7 dBu
Frequency Response: +0, −0.5 dB 20 Hz - 20 kHz, ref. 1 kHz
THD+N: <.005%, 20 Hz - 20 kHz
Line Inputs: (2) 1/4" TRS balanced or unbalanced
Input Impedance: 20 kOhm balanced, 10 kOhm unbalanced
Maximum Input Level: +13 dBu
Frequency Response: +0, −0.5 dB 20 Hz - 20 kHz, ref. 1kHz
THD+N: <.009% A/D, 20 Hz - 20 kHz
Instrument Input: (1) 1/4" mono jack
Input Impedance: 1 MOhm unbalanced
Maximum Input Level: +8.5 dBu
Frequency Response: +0, −1 dB 20 Hz - 20 kHz, ref. 1 kHz
THD+N: <.0125% A/D
Line Outputs: (2) 1/4" TRS balanced or unbalanced
Level: +16 dBu maximum
Impedance: 1 KOhm Balanced, 500 Ohm Unbalanced
Headphone Output: (1) 1/8" stereo jack 20 mW per channel at 50 Ohms
Sample Rate: 44.1 kHz or 48 kHz (determined by computer application)
Dynamic Range: A/D (24 Bit) 100 dB typical, A-weighted, 20 Hz - 20 kHz
D/A (24 Bit) 100 dB typical, A-weighted, 20 Hz - 20 kHz
A/D/A (24 Bit) 97 dB typical, A-weighted, 20 Hz - 20 kHz
Power Requirements: USB powered
Dimensions: 6.7 x 6.5 x 1.5
Weight: 1.13 lbs.
Lexicon engineers are constantly working to improve the quality of our products.Specifications are therefore
subject to change without notice.
34
Lexicon® Alpha Studio™ Signal Routing Diagram
8760 South Sandy Parkway | Sandy, Utah 84070 U.S.A.
Harman Music Group
Phone: 801-566-8800 | Fax: 801-566-7005
Alpha Desktop Recording Studio™
Questions or comments?
Email us at: customer@lexiconpro.com
or visit our World Wide Web home page at: www.lexiconpro.com
Copyright 2007 Lexicon Professional
®
Part Number: 18-0346-C
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