Lexicon LDI 12T - REV 1, 12T system, LDI-12T User Manual
1 2 T S y s t e m U s e r G u i d e
for Macintosh and PC
Unpacking and Inspection
After unpacking the12T system modules, save all packing materials in case you ever need to ship the units. Thoroughly inspect the modules and
packing materials for signs of damage. Report any damage to the carrier at once; report equipment malfunction to your dealer.
Lexicon Part #070-12131 Rev 1
Copyright 1998, Lexicon Inc.
All Rights Reserved.
Printed in the U.S.A.
Lexicon Inc.
3 Oak Park
Bedford MA 01730-1441
Telephone 781-280-0300
Fax 781-280-0490
www.lexicon.com
Notice
This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's
instructions, may cause interference to radio and television reception. It has been type tested and found to comply with the limits for a Class A
computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules, which are designated to provide reasonable protection
against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause 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 the receiving antenna
Relocate the computer with respect to the receiver
Move the computer away from the receiver
Plug the computer into a different outlet so that the computer and receiver are on different branch circuits.
If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user may find the
following booklet prepared by the Federal Communications Commission helpful:
"How to identify and Resolve Radio/TV Interference Problems."
This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No. 004-000-00345-4.
Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class A
prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada.
This triangle, which appears on
your component, alerts you to
the presence of uninsulated,
dangerous voltage inside the
enclosure... voltage that may be
sufficient to constitute a risk of
shock.
CAUTION
RISK OF ELECTRIC SHOCKRISK OF ELECTRIC SHOCK
DO NOT OPENDO NOT OPEN
This triangle, which appears on
your component, alerts you to
important operating and maintenance instructions in this accompanying literature.
i
Table of Contents
1 Getting Started
Introduction .......................................................... 1
System Requirements..........................................2
High Performance Systems ...........................2
SCSI vs. IDE..................................................3
2 Installation
Precautions .......................................................... 5
Hardware Installation ........................................... 6
Setup .............................................................6
Mount the PC-90 Card
onto the Core-32 Card ............................. 6
Attach the PCI Extender ................................ 8
Install the Core-32/PC-90 Assemby ..............9
Connect the LDI-12T Interface
to Audio Sources.................................... 10
PC Software Installation..................................... 11
Install Supported Third Party
Audio Software....................................... 11
Install the Windows Lexicon Studio Driver...11
Install PC-90 Software for Windows ............ 12
Updating Driver and PC-90 Software................. 13
Update Studio Driver ................................... 14
Re-install PC-90 Software ........................... 14
Macintosh Software Installation ......................... 16
System Connections .......................................... 18
Front Panel Connections ............................. 18
Rear Panel Connections.............................. 18
Typical Configurations ................................. 19
3 Core-32 Basics
Signal Routing.................................................... 21
Core-32 Control Panel ....................................... 22
Ctrl I/O ......................................................... 23
Reverb ............................................................... 35
Punch Record .................................................... 28
Configuring the Punch Feature.................... 29
The Mix Level control................................... 29
Timecode and Synchronization .......................... 30
Setting Up Cubase to Sync to Timecode..... 31
Setting the Audio Sync Clock Reference..... 31
Sample Rates ..............................................32
Word Clock .................................................. 32
Word Clock Sources .................................... 32
Recording .................................................... 33
MIDI ,Automation and Audio Editing............ 33
4 MMIO
Compatibility....................................................... 35
LexPanel.exe ..................................................... 36
Ctrl I/O ............................................................... 37
Reverb ............................................................... 39
PC-90 Routing.................................................... 40
PC-90 Interface............................................ 42
PC-90 Presets ............................................. 42
Punch Record .................................................... 43
Configuring the Punch Feature.................... 44
The MIX Level Control ........................... 44
Timecode and Synchronization .......................... 45
Setting up the Audio Application to
sync to Timecode ................................... 46
Clock Source • Word Clock Sources
Recording
5 Using the PC-90
Basic Operation.................................................. 49
The Interface................................................ 49
Inserting PC-90 within a VST Application .... 50
Routing an Audio Channel through
the PC-90 • Selecting PC-90 and
Making Settings • Naming Effects
Saving Effects • Loading Effects
Editing Effects
Inserting PC-90 within an MMIO
Application.............................................. 55
Making Settings for the PC-90 • Loading
Effects • Editing Effects • Naming Effects
Saving Effects
Beyond the Basics ............................................. 59
Routing a Plug-In ......................................... 59
Automating the PC-90 ................................. 63
6 Reference
PC-90 Algorithms ............................................... 65
Ambience..................................................... 65
Chamber ...................................................... 66
Concert Hall ................................................. 67
Inverse ......................................................... 67
Room ........................................................... 68
The Parameters ........................................... 69
Chorus • Crossover • Decay • Decay Lvl
Definition • Diffusion • Duration • Echo
Delays • Echo Feedback • Effects Mix
HF Rolloff • Infinite • Input Lvl • Link
Mid RT and Bass Mult • Pre Delay
Range and Rate • Reverb Level • Reflect
Delays • Reflect Levels • Shape, Spread
Size • Slope Spin • Treble Dcy
Notes on Preset Design
Appendix A
PC-90 Application Notes
Appendix B
Troubleshooting the PC
Appendix C
Troubleshooting for the Macintosh
Appendix D
Specifications
ii
Lexicon Part # 070-12131 Rev 1
Lexicon Inc.
3 Oak Park
Bedford MA 01730-1441
Telephone 781-280-0300
Fax 781-280-0490
www.lexicon.com
1
1
Getting Started
Lexicon Studio 12T System User Guide for Macintosh and PC
1
Getting Started
Introduction
Thank you for your purchase of a Lexicon Studio system. Lexicon Studio is a line of professional
hardware components designed for your computer that provides uncompromised audio quality and
extensive processing capability. This family of products is designed to allow you to tailor your working
environment to your needs. Lexicon Studio provides I/O options, DSP, signal routing, and synchronization for industry leading software.
Although written to accommodate both novice and expert users, this manual assumes some
familiarity with the software application you have selected to interface with Lexicon Studio. If you have
questions concerning the use of your software application, please refer to the user manual provided
by the manufacturer of the software before using your Lexicon Studio system.
This manual is designed for both the Macintosh and PC versions of Lexicon Studio, which differ only
in installation procedures. As pictures from both platforms are used throughout this manual, your
screen graphics will vary depending on the system you are using.
Electronic PDF documentation containing late-breaking information is provided on CD-ROM with your
Lexicon Studio system, along with electronic documentation for the PC-90. These PDFs have
information that may be crucial to operating the latest version of the software you are using. The
electronic documentation always supersedes the information in your printed manual. Please read it
carefully, and always look to our website at www.lexicon.com for the latest updates in both software
and documentation.
Getting Started
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Lexicon
System Requirements
The following systems are recommended as the minimum for working with Lexicon Studio:
Macintosh
• 200MHz PowerPC processor (PowerPC 750 G3 processors are highly recommended)
• 64MB of RAM
• Audio-capable disk drive
• MacOS 7.6.1 or later
PC
• 200MHz Pentium Processor or compatible equivalent (Intel processors are also highly recommended.)
• 64MB of RAM
• Audio-capable disk drive
• Microsoft Windows — 95™, 98™ or later
High Performance Systems
Popular software packages like Cubase VST, Logic Audio and VisionDSP all show performance
improvements with high CPU speeds and additional RAM. A high performance system benefits from
the following:
• Fast CPU — For the best Macintosh performance, use a G3 processor. Intel is the best PC choice.
CPUs from other manufacturers often don’t perform as well at the same rated clock speeds and
may have variant implementations of important sections like the FPU (Floating Point Unit).
• A system “boot” drive and a separate drive for audio
• A reliable video card with current drivers. Some cards offer acceleration that “hog” the PCI bus
and creates data logjams. For Macintosh, use on-board video or an Apple-approved video card.
• AGP (Advanced Graphic Port) capability for the graphics card is preferable as it gets the video
off of the PC's PCI bus.
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Getting Started
Lexicon Studio 12T System User Guide for Macintosh and PC
SCSI Vs. IDE
Both SCSI and IDE offer distinct advantages and disadvantages:
Benefits Liabilities
SCSI • Fast bus performance • Use of a PCI card to interface
• Removable media to the computer increases bus
• Choice of many high traffic, especially if multiple PCI
performance drives cards are in the system
IDE: • Drives approach SCSI • The IDE bus is slower (in most
performance cases this is NOT the limiting factor)
• Inexpensive • Fewer model choices
• Using the IDE bus decreases • Limited removable media
activity on the SCSI bus
For both Macintosh and PC systems it is always best to dedicate one disk drive for the operating
system, and a second drive specifically for audio.
Stay tuned on our website for the latest recommendations as technology changes.
Getting Started
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
2
Installation
Depending on your computer, installation of your Lexicon Studio system should take about 20
minutes. Please read through the entire procedure before performing the installation. Lexicon Studio
works with third party software (such as Steinberg Cubase VST, Opcode VisionDSP, Emagic Logic
Audio) which should be installed prior to installing the hardware and software for Lexicon Studio.
Refer to your audio software user manual on how to accomplish this.
Precautions
• Turn off and unplug your computer.
• Use the anti-static wrist strap provided with your system and make sure that you are grounded
during the entire installation process to prevent static charges that can damage components.
• Put the anti-static bags containing your cards near your computer to avoid walking around with
a card and generating static electricity after it is removed from its bag.
• Before handling any Lexicon Studio cards, discharge any personal static electricity that may be
on your clothes or body by touching a grounded metal surface, such as the power supply case
inside your computer.
• Handle the cards only by their edges, as you would a CD. Avoid touching the pins on the bottom
edge of the cards.
• Save the anti-static bags containing your Core-32 System card and PC-90 module. These
prevent static electricity from damaging sensitive electronic components on the cards. Whenever
cards are removed from your computer, they should be stored in these bags.
Installation
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Lexicon
Hardware Installation
As some Lexicon Studio software is installed into directories of your audio control software (such as
Cubase Audio VST), you should install and verify that your audio software launches properly before
installing Lexicon Studio (even though it will not be audio-capable until installation of the Lexicon
Studio system). Please refer to your audio software manual for details on installation, and then
proceed with Lexicon Studio hardware and software installation.
Setup
1. Put on the anti-static wrist strap.
2. Place the foam from your Lexicon Studio package on top of a work surface next to your computer.
(Any flat piece of static-safe foam with similar dimensions to the Core-32 card can be used.)
3. Make sure that you computer is properly shut down and unplugged.
4. Remove the computer top cover and PCI slot cover(s) for the slots you’ve chosen for your Lexicon
Studio cards. If you do not know how to open your computer, consult the manufacturer’s owner’s
manual.
5. Touch the computer power supply case to discharge any personal static electricity.
6. Remove the Core-32 from its anti-static bag, holding the card only by its edges. Be careful to avoid
touching the pins on the bottom edge of the card. Place the Core-32 bag on top of the foam and
place the card on the foam with the white PC-90 connector facing up.
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
Mount the PC-90 card onto the Core-32 card
The PC-90 module can only be mounted onto a Lexicon Studio Core-32 system card. Attempting to
attach your PC-90 to any other type of PCI card may damage your PC-90 module.
1. Touch the computer power supply case to discharge any personal static.
2. Remove the PC-90 module from its anti-static bag, holding the card only by its edges. Place the
bag on your work surface next to your computer and place the PC-90 on it with its white connector
facing up.
3. Pick up the PC-90 card and orient it so that the connector side faces away from the palm of your
hand.
4. Pick up the Core-32 card in your other hand. Orient the cards with their connector sides facing
each other and align the connectors at the top of each card. Firmly press the cards together until
they connect fully. The holes on the edges of the Core-32 card should be aligned with the
standoffs on the PC-90 card.
5. Once the cards are mated, place the assembly, with the Core-32 card on top, onto the Core-32
anti-static bag. Use the four screws provided to attach the PC-90 to the Core-32 card. Do not
overtighten the screws, as you may damage the PC board.
Installation
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Lexicon
Attach the PCI Extender
The extender provides support for cards installed horizontally and prevents boards from touching
each other (which can damage the cards). To attach the extender:
1. Holding the Core-32 assembly by its edges, align the holes of the board and the extender.
2. Insert two screws (provided) from the back of the Core-32 card as shown. Do not overtighten the
screws, as you may damage the PC board.
NOTE: On most new Macintosh models, the PCI bus is sized to fit full-length PCI cards solidly.
On these models (9600, G3 Mini-tower) you will not need to install the PCI Extender.
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
Install the Core-32/PC-90 assembly
The Core-32 System card must be installed in a full-size PCI slot which is a bus master slot to take
advantage of its bus master capabilities. Refer to your computer owner’s manual to determine which
slots are available as bus masters. (On some older motherboards, the PCI slot next to the ISA bus
connector [the PCI/ISA/ shared slot] is not a PCI bus master slot).
1. Verify that third party audio software is installed and launches correctly.
2. Touch the computer power supply case to discharge personal static.
3. Pick up the Core-32/PC-90 assembly by the top of the metal bracket and the top of the other end
of the card.
4. Align the card assembly over the slot you’ve chosen and insert it.
5. Place one hand along the top edge of the card and push down firmly until the card is fully seated
in the slot. Do not use excessive force.
6. Once the card is fully seated, attach the Core-32 bracket to the computer chassis with the screws
provided with your computer. If the computer is a tower or mini-tower design, check to see that
boards are not bending under their own weight and shorting against each other.
7. Replace the cover on the computer. Do not operate the system without the cover.
Installation
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Lexicon
Connect the LDI-12T Interface to Audio Sources
Cables/Connections
1. Use only the proprietary Lexicon cable (provided) to connect the Core-32 card to the LDI-12T
Interface.
2. With both the computer and the LDI-12T powered down, attach the cable between the lower
connector on the back of the Core-32 card and the Computer port on the LDI-12T rear panel.
3. Connect the 9V connector to the AC Power port on the rear panel of the LDI-12T, and plug the
other end into a wall socket.
The LDI-12T supports various formats of analog and digital I/O. Make certain your cables are the
correct types prior to connection. (Analog XLR connectors are +4dBu balanced (Pin 2 hot) , analog
RCA connectors are –10dBV unbalanced). To select a source for input or output within the application
software, refer to the documentation provided with your particular software package
When powering up your system, always make sure to turn LDI-12T power on prior to turning on your
computer. This ensures that diagnostics and calibrations necessary for optimum performance are
performed upon starting up your computer system.
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
PC Software Installation
Install Supported Third Party Audio Software
Lexicon Studio requires compatible front-end software (such as Cubase Audio VST) to operate.
Please refer to your particular software installation guide for assistance. As Lexicon Studio installs
software within directories of your front-end software, you should install your audio software first and
verify that it launches properly before installing Lexicon Studio (even though it will not be audiocapable until installation of the Lexicon Studio system).
If you are installing a later version of Lexicon Studio software over your current Studio software, please
skip to the next section entitled
Updating Driver and PC-90 Software.
Install the Lexicon Studio Driver for Windows
1. With your Lexicon Studio hardware and third party audio software installed, power up LDI-12T
interface and your computer. Once your computer is fully booted, Windows will identify your Core32 as a new PCI multimedia device. In the event of booting problems, refer to the troubleshooting
section of this user guide.
2. The Windows Update Device Driver Wizard will appear. Insert the
“Lexicon Studio: Drivers &
Documentation”
CD-ROM , and click the Next > button, allowing Windows to perform a search
for the Lexicon Studio driver.
3. Windows will find the driver information for the Lexicon Studio Sound System on the CD-ROM
(if it does not, you may need to Browse to it. Additionally, you may also need to Browse to the
CD-ROM for a file entitled asiolex.dll. Click the Finish button.
4. When the drivers are loaded, you will be prompted to restart your computer. If you are also
installing a PC-90, you should choose not to restart at this time and proceed to the instructions
for installing PC-90 software within the next section. Windows will prompt you twice to restart.
Select No at both prompts and move on to the next section,
Installing the PC-90 Software for
Windows
. If you are only installing Core-32 drivers, you may now restart your machine.
Installation
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The Installer will remove any prior versions of this software found in your system and place all
components as required. Following is a list of files installed and their locations:
File Location
asiolex.dll C:\LxStudio
Core32.dll C:\LxStudio
Coredsp.pci C:\LxStudio
Corefpga.bin C:\LxStudio
Corev40.bin C:\LxStudio
Diagv40.bin C:\LxStudio
Lexpanel.exe C:\Windows\System
lxstudio.inf Installs as LexiconStudio.inf within C:\Windows\Inf\Other
mmids.drv C:\Windows\System
dll32.dll C:\Windows\System
Core32.vxd C:\Windows\System
lexmtc.drv C:\Windows\System
launchpanel.exe C:\Windows\Start Menu\Programs\Startup
Install the PC-90 Software for Windows
1. Insert the
“Lexicon Studio: Drivers & Documentation”
CD-ROM if you haven’t already.
2. Open the contents of the CD-ROM and double-click on Setup.exe to launch the Installer.
3. Read the Directory Path Warning and then click OK.
4. Click Next > at the Installer welcome screen.
5. Make certain that the installer is directed toward the desired plug-in folder (example: C:\..\Cubase
Audio VST\vstplugins) and click Next >.
6. At the summary screen, select the desired software and click Next > to choose it.
7. Click Next > to begin the installation.
8. Click Finish to complete the PC-90 software installation.
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
9.Restart your computer (even if you’ve already restarted after installing the Core-32 Drivers).
Installing the PC-90 software will file it within Windows program registry. To remove or update this
software, remove the PC-90 install by using the Add/Remove Programs control panel, highlighting
UnLexiconPC90, and selecting Remove. This control panel is located at Start/Settings/Control
Panel/Add/Remove Programs.
Updating Driver and PC-90 Software
If you are installing a newer version of Lexicon Studio software over your current software, follow the
steps outlined below.
Deinstall the PC-90 Software for Windows
As PC-90 software is registered through the Windows Add/Remove Programs control panel, it must
be completely removed to install a newer version. You should never have 2 different versions of PC90 software installed simultaneously. To deinstall PC-90:
1.Go to Start/Settings/Control Panel /Add/Remove Programs.
2.Scroll down to UnLexiconPC90.
3.Click the Add/Remove button.
4.Click the Yes button when asked “Are you sure you want to completely remove ‘UnLexiconPC90’
and all of its components?”.
5.Click OK to close the control panel
.
Installation
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Lexicon
Update Studio Driver
If you have a CD-ROM or have downloaded Lexicon Studio drivers with a higher revision number than
those currently installed in your system, you should choose to update your driver. To do so, follow the
directions below.
1. Go to Start / Settings / Control Panel / System.
2. Click on the ‘Device Manager’ tab..
3. Open the directory for ‘Sound, Video and Game Controllers.
4. Highlight ‘Lexicon IDS Sound System’ by clicking on it.
5. Click the Properties button.
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
6. Select the ‘Driver’ tab within the Properties page.
7. Click the Update Driver... button.
8. Windows will ask you if you wish it to search for the driver. Select ‘Yes (Recommended)’.
9. Windows will search whichever drive from which a driver was last loaded. If you installed drivers
from floppy disk, it will check only the floppy drive. If you have loaded the updated drivers from
different media, you will need to click the Other Locations... button and Browse to the CD-ROM
for the new driver.
10. Click the Finish button.
11. Windows will prompt you to restart now. If you still need to reinstall new PC-90 software, select
No when prompted and continue with these instructions.
Installation
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Lexicon
Reinstall PC-90 Software
1. Insert the
“Lexicon Studio: Drivers & Documentation”
CD-ROM if you haven’t already.
2. Open the contents of the CD-ROM and double-click on Setup.exe to launch the Installer.
3. Read the Directory Path Warning and then click OK.
4. Click Next > at the Installer welcome screen.
5. Make certain that the installer is directed toward the desired plug-in folder (example: C:\..\Cubase
Audio VST\vstplugins) and click Next >.
6. At the summary screen, select the desired software and click Next > to choose it.
7. Click Next > to begin the installation.
8. Click Finish to complete the PC-90 software installation.
9. Restart your computer (even if you’ve already restarted after installing the Core-32 Drivers).
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
Macintosh Software Installation
1. With your Lexicon Studio hardware and third party audio software installed, power up LDI-12T
interface and your computer. In the event of booting problems, refer to the troubleshooting section
of this user guide.
2. Insert the “
Lexicon Studio: Drivers & Documentation
” CD-ROM, and double-click on the Studio
Installer icon.
3. Click Continue at the splash screen. You will be given an opportunity to read the Lexicon software
license agreement. Click OK again.
4. The Installer gives you the choice of Easy Install, Custom Install, and Uninstall. Choose Easy
Install to load all the necessary components for Lexicon Studio. Choose Custom Install to load
only some of the software components for Lexicon Studio. Click Install.
5. If you have installed multiple ASIO-capable audio programs, a screen will appear that allows you
to choose which ASIO Drivers folder you want Lexicon Studio installed in. Click on a folder to
highlight your choice, then click OK.
6. If you have multiple VST-capable audio programs installed, a screen will appear that allows you
to choose which VstPlugins folder you want PC-90 installed in. Click on a folder to highlight your
choice, then click OK.
7. Repeat this entire installation procedure for each application.When software loading is complete,
click the Restart button.
The Installer will remove any prior software versions found in your system and place all components
as required. Following is a list of files installed and their locations:
File Location
Core-32 Extensions Folder
ASIO Control Panel Control Panel Folder
ASIO Core-32 ASIO Dirvers Folder
Lexicon PC90 1 VstPlugins Folder
Lexicon PC90 2 VstPlugins Folder
NOTE: The Installer will not allow you to automatically install a previous software version over a later
version. If you want to downgrade your software, you must Uninstall, then install the version you want.
Installation
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Lexicon
SYNC IN SYNC OUT
OutIn
ADAT or S/PDIFADAT
COMPUTER
RS-422
AUDIO
POWER
WORD CLOCK IN
LDI-12T
L
R
In
Out
S/PDIF
ANALOG OUT RL ANALOG IN RL
TIME
CODE
INPUT
POWER
PUSH
PUSH
PUSH
PUSH
PUSH
PUSH
• Two (2) analog +4dBu balanced XLR inputs (The stereo input is switchable between the +4dBu
output and the –10dBV input pair.)
• Two (2) analog -10 dBV unbalanced RCA inputs
• Two (2) analog +4dBu balanced XLR outputs (pin 2 hot)
• One (1) S/PDIF pair RCA (coaxial) digital input/output
• One (1) balanced XLR Time Code input
Rear Panel Connections
System Connections
Front Panel Connections
• Two (2) optical TOSLINK™ connectors for input/output connection to 8-channel ADAT®compatible format OR 2-channel optical S/PDIF format
• Two (2) ADAT sync D9 connectors
• One (1) Word Clock input BNC connector (75 Ω termination)
• One (1) Serial D9 connector
• One (1) Power connection
• One (1) Multi-pin computer connector
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InstallationLexicon Studio 12T System User Guide for Macintosh and PC
NOTE: The BNC Word Clock Input has a 75 Ω termination. Therefore, if you are distributing Word
Clock to a chain of devices, the LDI-12T must be last in the chain.
Typical Configurations
Following are some typical LDI-12T configurations. These are provided as a starting point, and to
familiarize you with the system. Once your system is physically configured, signal routing is controlled
by the Lexicon Studio Driver and the routing provided by your host application program (Cubase VST,
for example). Use of the Lexicon Studio Driver and examples of typical host application routing is
covered in the next section,
Signal Routing
.
The configuration shown below has the analog outputs connected to speakers for monitoring, S/PDIF
to a DAT for mixing, and ADAT connections for multi-channel recording. The XLR analog inputs could
be from a mixer or microphone/instrument preamp, or the RCA inputs could be used for low-level
devices such as a CD player or cassette deck.
LDI-12T
L
R
In
Out
S/PDIF ANALOG OUT RL ANALOG IN RL
TIME
CODE
INPUT
POWER
PUSH
PUSH
PUSH
PUSH
PUSH
PUSH
DAT Recorder
LDI-12T Front
CD Player
Mixer
–10dBV Inputs
+4dBu Inputs
LDI-12T Rear
S/PDIF In
SYNC IN SYNC OUT
OutIn
ADAT or S/PDIFADAT
AUDIO
ADAT TOSLINK Out
ADAT
Installation
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Lexicon
SYNC IN SYNC OUT
OutIn
ADAT or S/PDIFADAT
COMPUTER
RS-422
AUDIO
POWER
WORD CLOCK IN
LDI-12T Rear
DAT Player
S/PDIF Optical I/O Connection
LDI-12T Rear
SYNC IN SYNC OUT
OutIn
ADAT or S/PDIFADAT
AUDIO
S/PDIF Coaxial Out
LDI-12T Front
LDI-12T
In
Out
S/PDIF
TIME
CODE
INPUT
POWER
PUSH
PUSH
S/PDIF Optical In
CD Player
DAT Player
LDI-12T
L
R
In
Out
S/PDIF ANALOG OUT RL ANALOG IN RL
TIME
CODE
INPUT
POWER
PUSH
PUSH
PUSH
PUSH
PUSH
PUSH
LDI-12T Front
Effects Processor
S/PDIF Digital I/O Connection
S/PDIF connections can be made to any digital device such as the send/returns of a digital signal
processor.
Optical S/PDIF connections are provided as an alternative to the normal 8-channel ADAT format.
The LDI-12T can accept different input and output formats as shown below. This configuration can
be used for format conversion from optical S/PDIF to coaxial (RCA) S/PDIF and to provide flexible
routing.
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Core-32 Basics
Lexicon Studio 12T System User Guide for Macintosh and PC
3
Core-32 Basics
Signal Routing
Using Cubase VST as an example of a host application, the following things determine signal routing.
1. LDI-12T connections.
2. Configuration of the Core-32 Control Panel.
3. Inputs and outputs selected and enabled in Cubase Audio VST.
Typically, all connections will appear directly in the application as available inputs and outputs along
with the Core-32 Control Panel routing for the PC-90 and Punch Record. Details on these are covered
in the following section.
Core-32 Basics
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Lexicon
Core-32 Control Panel
Certain portions of the Lexicon Studio System should be specifically set up for the program you are
using. This setup is performed in the Core-32 Control Panel. To access the Control Panel, pull down
the Audio menu, select System and click on the ASIO Control Panel button. Our example is from
Cubase VST. The actual procedure will vary depending on your audio application.
The method of selecting Tabs for different pages, will be familiar to users of Windows and other
Microsoft products. The selections are: Ctrl I/O, Reverb, Punch and Timecode.
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Core-32 Basics
Lexicon Studio 12T System User Guide for Macintosh and PC
Ctrl I/O
Items on the Ctrl I/O tab control include Input/output converter gain, Digital I/O format, Digital deemphasis and SCMS (Serial Copy Management System) copy protection code.
Gain Levels are controlled by on screen faders with the level displayed numerically at the bottom.
A gain of 0dB sets unity gain from XLR input to XLR output, where +4dBu is 14dB below digital fullscale. (For the RCA inputs, 0dB corresponds to –10dBV, 14dB below digital full-scale.)
Clicking the Link button between fader pairs links them as a stereo pair for convenient identical gain
setting. The left fader’s value is always favored when Link is used to make the faders operate at the
same level. Control clicking on the Link button will link the fader heads while maintaining their relative
levels. Clicking with the mouse on the fader head while holding down the ctrl key on the computer
keyboard will set the selected fader or stereo grouped fader to 0dB. Gain levels can also be entered
numerically by double-clicking on a numeric field, then entering a value.
Core-32 Basics
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Lexicon
Input/Output controls allow you to select S/PDIF or ADAT as the digital format for the optical input
and output connections, and to select between XLR or RCA connectors for the analog inputs.
Conversion between optical and coaxial (RCA) S/PDIF is possible by selecting S/PDIF OPTO and
S/PDIF RCA for input or output and vice versa. When Optical S/PDIF output is chosen, the RCA output
remains active, creating a digital Y-cord or signal splitter. (NOTE: this is not true of the inputs —both
S/PDIF inputs
cannot
be used at the same time.) You can however use ADAT OPTICAL and S/PDIF
RCA simultaneously.
De-Emphasis Select enables de-emphasis to be applied to the analog output. This function applies
only to the analog converter, and does not affect signals from the S/PDIF or ADAT interface.
SCMS/Copy Protection applies SCMS (Serial Copy Management System) coding to the S/PDIF
output. Choose Multiple Copies to encode the output for reproduction, One Copy to allow a single
digital 1-to-1 copy to be made from the S/PDIF output, or No Copies to prohibit any copies.
12T DAT
Original
Multiple Copies
One Copy
DAT
Copy
DAT
Copy
S/PDIF
Out
S/PDIF
Out
S/PDIF
Out
S/PDIF
Out
etc.
12T DAT
Original
DAT
Copy
DAT
Copy
S/PDIF
Out
S/PDIF
Out
S/PDIF
Out
No Copies
12T DAT
Original
DAT
Copy
S/PDIF
Out
S/PDIF
Out
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Core-32 Basics
Lexicon Studio 12T System User Guide for Macintosh and PC
Reverb
The reverb page allows you to route the PC-90’s two DSP engines independently through any of the
connectors of your audio interface.
Each PC-90 engine has two input sources (left and right), and two output destinations (left and right).
To assign a source to any of the input channels in your PC-90:
1. Click the left mouse button on the down-arrow of an input selector. A menu will open, displaying
the sources available to route into your PC-90.
2. Use the pop-up menu to view all of the sources.
3. Click on a source to route it as an input source. The input selector will display the selected input
source.
NOTE: Input sources must be routed one at a time.
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