Lexicon PCM 80 - REV 1 User manual

PCM 80
Dual FX
Algorithm Card User Guide

Lexicon Part # 070-11143
Copyright 1995
All Rights Reserved.
Unpacking and Inspection
After unpacking the Dual FX Algorithm Card, save all packing materials in case you ever need to ship the card.
Thoroughly inspect the card and packing materials for signs of damage. Report any shipment damage to the
carrier at once; report equipment malfunction to your dealer.
This is a read only card.
Use only with the Lexicon PCM 80.
To avoid damage to the card, do not expose to rain or moisture, extreme temperatures, direct sunlight, or extreme shock.
In the event the card is dropped, damaged, or exposed to liquids, do not insert it into the PCM 80.
Precautions

Dual FX
Algorithm Card
PCM 80
User Guide

Contents
Introduction
1. Dual FX Card Operation
Handling the Algorithm Card............................................................... 1-1
Loading the Dual FX Algorithms ......................................................... 1-3
Loading the Dual FX Presets.............................................................. 1-4
Using the Submixer ............................................................................ 1-5
Sends ........................................................................................... 1-6
Returns......................................................................................... 1-6
Routing ......................................................................................... 1-7
Useful Configurations ................................................................... 1-7
Rvb and FX Block Controls............................................................... 1-13
2. The Dual FX Blocks and the Algorithms
Overview............................................................................................. 2-1
The Reverb Blocks ............................................................................. 2-2
Concert Hall ................................................................................. 2-2
Plate ............................................................................................. 2-2
Chamber ...................................................................................... 2-3
Inverse ......................................................................................... 2-3
Infinite........................................................................................... 2-4
The FX Blocks .................................................................................... 2-5
Glide ............................................................................................. 2-5
Chorus.......................................................................................... 2-6
M-Band......................................................................................... 2-7
The Resonant Chord Algorithms Res1 and Res2 ........................ 2-8
The Algorithms.................................................................................... 2-9
Gld-Hall ........................................................................................ 2-9
Band-Hall ................................................................................... 2-10
Chrs-Hall .................................................................................... 2-11
Res1-Hall ................................................................................... 2-12
Res2-Hall ................................................................................... 2-13
Gld-Chmb ................................................................................... 2-14
Band-Chmb ................................................................................ 2-15
Chrs-Chmb ................................................................................. 2-16
Res1-Chmb ................................................................................ 2-17
Res2-Chmb ................................................................................ 2-18
Gld-Plt ........................................................................................ 2-19
Band-Plt ..................................................................................... 2-20
Chrs-Plt ...................................................................................... 2-21
Res1-Plt ..................................................................................... 2-22
Res2-Plt ..................................................................................... 2-23
Gld-Inv........................................................................................ 2-24
Band-Inv ..................................................................................... 2-25
Chrs-Inv...................................................................................... 2-26
Res1-Inv ..................................................................................... 2-27
Res2-Inv ..................................................................................... 2-28
Gld-Inf ........................................................................................ 2-29
Band-Inf...................................................................................... 2-30
Chrs-Inf ...................................................................................... 2-31
Res1-Inf...................................................................................... 2-32
Res2-Inf...................................................................................... 2-33

Contents, cont'd. 3. The Presets
Program Bank X0 ............................................................................... 3-2
Stereo (0.0-4.9)
Program Bank X1 ............................................................................... 3-6
Stereo (0.0-4.9) ............................................................................ 3-6
Program Bank X2 ............................................................................. 3-10
Stereo (0.0-2.9) .......................................................................... 3-10
Mono In/Stereo Out (3.0-4.9) ..................................................... 3-13
Program Bank X3 ............................................................................. 3-15
Dual Mono In/Stereo Out (0.0-2.9) ............................................. 3-15
Dual Mono In/Dual Mono Out (3.0-4.9) ...................................... 3-18
Program Bank X4 ............................................................................. 3-20
"Clean Slate" Algorithms (0.0-2.4).............................................. 3-20
Dual Mono In/Dual Mono Out..................................................... 3-20
Alphabetical Index of Presets ........................................................... 3-23

Introduction
Thank you for your purchase of the PCM 80 Dual FX Algorithm Card. Dual FX
processingbringsevengreatercontrolcapabilitiestothePCM80,alongwiththe
sonic clarity you expect from Lexicon.
The Dual FX algorithms offer uncompromised stereo multi-effects combined
with unparalleled flexibility and ease of use. Twenty-five new algorithms are
provided on the PC card, along with 250 exciting new presets.
Each Dual FX algorithm contains two independent effect blocks — one of five
stereo reverbs and one of five different stereo multi-effects blocks with four
voices of delay, panning, feedback, etc. Each algorithm also has the full set of
modulation and patch features introduced in V1.00 of the PCM 80.
Configuration androutingcontrol isprovided by adedicated Submixer incorpo-
rated into each algorithm. Any combination of reverb and effects blocks can be
arranged in any configuration simply by changing the Submixer’s controls. As
the Submixer has continuously variable controls, you can alter the configura-
tionsonthefly—changing,forexample, fromreverb-into-effectstoeffects-into-
reverb.
The Submixer appears as a new row on the otherwise familiar PCM 80
parameter matrix. Three basic Submixer controls are provided: Sends, Re-
turns, and Routing. Any configuration can be achieved by simply adjusting
these three parameters.
Sends control the eight levels feeding into the reverb and effect blocks.
Returns control the eight levels feeding from the reverb and effect blocks.
Routing controls the configuration of all inputs and outputs to allow the two
effects blocks to be placed in series, parallel, or reverse series.
The Submixer row also contains controls for each block: Input Level, Input
Width, Output Width, Output Level, High Cut and Low Cut filters, and Wet/Dry
Mix. All of the Submixer parameters are continuously variable and can be
controlled in real-time by any PCM 80 patch source.
The25DualFXalgorithmsaremadeupofcombinationsofthefollowing4-voice
Effect and Reverb blocks.
FX Rvb
Glide (glide/ 4-voice delay) Concert Hall
M-Band (4-band EQ/ 4-voice delay) Chamber
Chorus (4-voice chorus/ 4-voice delay) Plate
Res1 (4-voice res1/4-voice delay) Inverse
Res2 (4-voice res2/4-voice delay) Infinite
These effects and their associated parameters will all be familiar to PCM 80
users. The 4-voice effects are slightly pared down versions of the PCM 80 6-
voice effects, and the Rvb effects are identical to those in the PCM 80.
The Submixer
Rvb and FX Blocks

The25algorithmsontheDualFXcardrepresentallofthepossiblecombinations
of these effect blocks:
Gld-Hall Gld-Chmb Gld-Plt Gld-Inv Gld-Inf
Band-Hall Band-Chmb Band-Plt Band-Inv Band-Inf
Chrs-Hall Chrs-Chmb Chrs-Plt Chrs-Inv Chrs-Inf
Res1-Hall Res1-Chmb Res1-Plt Res1-Inv Res1-Inf
Res2-Hall Res2-Chmb Res2-Plt Res2-Inv Res2-Inf
Each algorithm has a different combination of FX and Rvb types, but the basic
functionality of each is the same. Controls for each algorithm are arranged in a
PCM80-typematrix.Theaudioparametersareidenticaltothoseinthe PCM
80. New control parameters are found in the Control row and a new Submixer
row.
ThePCM80Dual FX cardcontainsabuilt-inlibrary of250presetprogramsthat
provide not only a comprehensive array of effects configurations, but a whole
newassortmentofexcitingandusefulsounds.AsinthePCM80,thepresetsare
organized into banks of 50, and functionally grouped for a wide range of
applications. Be sure to experiment with all 250 presets to get a feel for the full
rangeof the DualFX capabilities.As inthePCM 80,eachpreset(except forthe
bankX4"CleanSlate"presets)hasoneormoreparameterspatchedtothefront
panel ADJUST knob, giving you instant control over the primary aspect of the
effect — without going into Edit mode.
Thestereo presetsin banksX0, X1andX2aredesignedtoprocessstereoinput
material. Many of these presets will maintain the stereo image of the source
while adding reverb, delay, eq, (etc.) processing. These provide particularly
powerful options forsuchapplicationsas:re-mixprocessing, processing stereo
submixes, processing material with sources that “move” within the stereo field
and,ofcourse,processinginstrumentsorsamplesthathavebeenrecordedwith
stereomikingtechniques.Togetthemostfromthesepresets,bothinputsshould
be used. (To process a mono source, send the same signal to each input).
TheMono In/StereoOutpresetsinbankX2 create astereo image froma mono
source. They can be used with only one input connected. If both inputs are
connected, you can send the signal to be processed to either input.
The Dual Mono In/Stereo Out presets in bankX3 can be used eitherto process
one mono source with two independent stereo effects, or to process two mono
sources— each with independent stereo effects. In general, the left input feeds
a stereo 4 voice effect (echo, chorus, flange, eq, etc.) and the right input feeds
a stereo reverb (plate, chamber, hall, etc.)
TheDualMonoIn/MonoOutpresetsinbanksX3andX4providetwocompletely
independent mono effects. The left in/out is routed through a mono 4 voice
effect.The right in/out isrouted through amono reverb.These areuseful when
workingwithmaterialintendedforamonomix,orfor“in-line”processingwiththe
PCM80connectedtochannelinserts.The“CleanSlate” presetsin bankX4are
providedas aconvenientstarting placewhenyou wantto createanewprogram
from scratch. There is one clean slate preset for each of the 25 algorithms.
We hope you will find the Dual FX card easy to use, and a great extension of
the power of your PCM 80. To get the most out ofthe card, we suggest thatyou
invest the time to explore this manual. We think you’ll agree that the time spent
investigating will reward you with enjoyment of the full capabilities of the card.
The Algorithms
The Presets
Dual FX Card Banks
Bank X0
0.0 - 4.9 Stereo
Bank X1
0.0 - 4.9 Stereo
Bank X2
0.0 - 2.9 Stereo
3.0 - 4.9 Mono In/
Stereo Out
Bank X3
0.0 - 2.9 Dual Mono In/
Stereo Out
3.0 - 4.9 Dual Mono In/
Mono Out
Bank X4
0.0 - 2.4 "Clean Slate"
versions of the
algorithms
2.5 - 4.9 Dual Mono In/
Mono Out

1-1
Dual FX Card Operation
1
Dual FX Card
Operation
Handling the
Algorithm Card
TheDual FXAlgorithmCardisastandard PC carddesignedtobeusedwiththe
LexiconPCM 80 (version1.10orhigher). Careand handling ofthe card,aswell
as some routine precautions are noted here. Please review these before using
thecardtoavoiddamagetothecard,aswellaserrorstatesinthePCM80.Refer
toyourPCM80UserGuideforinformationontroubleshootingthePCM80itself.
The Dual FX Algorithm Card is designed for use ONLY with the PCM 80.
The Dual FX card is a Read Only Memory Card which cannot be overwritten.
Handle cards with care.
Do not bend the card, or subject it to moisture, extreme temperature, direct
sunlight, or extreme shock.
Insert card completely before attempting card operations.
Incomplete card insertion can cause abnormal behavior.
Do not press EJECT while loading the card.
If the card is inserted before the PCM 80 is powered on, wait for the
completion of Power On Diagnostics andthe loading of the first program
before attempting to use or remove the card.
Card algorithms will be loaded automatically into the PCM 80 on power on.
Removing thecard before thecompletion of thenormalPCM80 poweroncycle
may cause abnormal behavior.
Once the algorithms have been loaded fromthe card, you can eitherremove
thecard, or leave itinthe PCcard slot.In thePCM 80 Version 1.00,problems
can occur if you load the card, remove it, and then reinsert it without power-
cycling the unit.
While the PCM 80 is running an extension card algorithm, it will not load
a second algorithm card.
Recognition of a second algorithm card requires returning to the PCM 80's
internal memory by loading a preset or register from one of the internal
algorithms before loading the new algorithm card.
Care and Handling
Card Insertion
Operational Behavior

Lexicon
1-2
PCM 80 Dual FX User Guide
MIDI SysEx register dumps require that the algorithm card used to create
the effect(s) be loaded.
Be aware that, if you create a bank of registers with effects created from more
than one algorithm card, you will need to perform separate SysEx dumps for
each card used.
The algorithm used to create an effect must be loaded into the PCM 80 for a
SysEx dump to occur. If you do not have the appropriate algorithm card loaded
into the transmitting PCM 80, the data for the effect is not transmitted and the
following message is displayed:
Can't dump effect
Need algorithm card
Ifyoudonothave the appropriatealgorithmcardloaded into thereceiving PCM
80 when a valid SysEx for an effect created from a card algorithm is received,
the following message is displayed:
Effect unchanged
Need algorithm card
Aplaceholderistransmittedforanyregisterwhichcannotbe dumpedduetothe
absenceof analgorithmcard. Thisplaceholdercontainstheprogramnameand
algorithmnumber,butnoeffect parameterdata.Thisallows an editortoidentify
registers which were not sent, and the algorithm card which must be loaded to
complete the dump. The PCM 80 will always ignore the placeholder, and will
display the following message when a placeholder is received:
Effect unchanged
No data in dump
Notethat registersmadefromalgorithmcardscanbefreelycopiedbetweenthe
PCM80'sinternalregisterbank(R0)andRAM cardbanks(C0,C1,etc.)without
loading the algorithm card.

1-3
Dual FX Card Operation
Inorderto runtheDualFXalgorithms,thesoftwaremustbeloadedintothePCM
80’s “extension” memory. To do this:
If the PCM 80 is turned off:
1. Insert the Dual FX algorithm card into the PC card slot.
2. Power up the PCM 80. The software will be loaded automatically.
If the PCM 80 is already running:
1. Insert the Dual FX algorithm card into the PC card slot.
2. Press Control and use SELECT and Up and Down to go to Control 2.1.
The following message should appear:
Card Load: Dual FX 1.0
2.1 (Press LOAD)
3. Press Load/✱. The following message will appear briefly to indicate the
load was completed:
Extensions now
available
If the PCM 80 is running an algorithm from a different extension card:
Loading a different algorithm card requires returning to the PCM 80's internal
memory by loading a preset or register from one of the internal banks.
Otherwise, the following error message will be displayed when you press
Load/✱:
Cannot load while
running extension
To load a different algorithm card :
1. Press Program Banks and select an internal preset bank (P0 - P3).
2. Turn SELECT to display any preset in any of these banks, then press
Load/✱.
3. The new algorithm card can now be loaded as described above.
Loading the Dual FX
Algorithms
Once extension card soft-
ware is loaded, you can re-
move the card from the slot.
The algorithms will remain in
the PCM 80 until the unit is
turnedoff,oranewalgorithm
card is loaded. This makes
thePC card slot available for
loading and storing registers
on RAM cards.

Lexicon
1-4
PCM 80 Dual FX User Guide
Loading the
Dual FX Presets Once the software is loaded, the PCM 80 will have access to the additional
programbanksavailableonthealgorithmcard.Theseextensionmemorybanks
are labeled with an X.
1. Press Program Banks repeatedly until the Xbanks are displayed. These
will follow all of the PCM 80's internal Program banks.
2. Use SELECT, Up and Down and Load/✱to view and load the Dual FX
presets.
You can edit these presets and save the changed version into the PCM 80’s
internalregisters,oryoucansavethemintoRAMcardregisterbanks.IftheDual
FX algorithms are loaded, recalling programs created with the algorithms is as
simple as selecting and loading any PCM 80 program.
If the Dual FX algorithms are not loaded when you attempt to load a program
created with them, the display will indicate that the selected register requires
extension memory (in this case, the Dual FX card).
Extension
R 1.1 DualStereoFX
Complete descriptions of all of the Dual FX presets are given in Chapter 3.

1-5
Dual FX Card Operation
The Dual FX Card contains a
complete dual-channel
effects mixer.
New configuration control is added to basic PCM 80 functionality with the Dual
FX Card. The most significant aspect of this expanded control is the addition of
a Submixer which is incorporated into each algorithm. This Submixer lets you
arrangeanycombinationofreverbandeffectsblocksinanyconfigurationsimply
by changing the three main Submixer controls: Sends, Returns and Routing.
Additionalcontrolsareprovidedfor each block:InputLevel,InputWidth,Output
Width, Output Level, High Cut and Low Cut filters, and Wet/Dry Mix.
Using the Submixer

Lexicon
1-6
PCM 80 Dual FX User Guide
TheSubmixerappears as row1 on theparameter matrix of eachof the 25 Dual
FX algorithms. The first three parameters in the row are the basic Submixer
controls: Sends, Returns, and Routing. Any configuration can be achieved by
simply adjusting these three parameters.
ThekeytousingtheSubMixerparametersisunderstandingwhattheSendsand
Returns parameters do, and how they interact with the Routing Parameters.
TheSends parameter routes thePCM 80’stwo pannedinput signalsto thefour
effectinputs(theRvband FX blocks).Thisparameterhasarangeof0–300.The
value of this parameter determines what mix of theleft and right input signals is
fed to the stereo inputs of the Rvb and FX blocks. The values 0, 100, 150, 200,
300 correspond to specific configurations and are labeled with text instead of
numbers.
Sends Value Rvb Sends FX Sends
Stereo (0) L to left Rvb In L to left FX In
R to right Rvb In R to right FX In
L=Rvb, R=FX (100) L to left Rvb In R to left FX In
L to right Rvb In R to right FX In
Mono (150) L+R to left Rvb In L+R to left FX In
L+R to right Rvb In L+R to right FX In
L=FX, R=Rvb (200) R to left Rvb In L to left FX In
R to right Rvb In L to right FX In
Stereo (300) L to left Rvb In L to left FX In
R to right Rvb In R to right FX In
The Returns parameter routes the four effects outputs to the PCM 80’s stereo
outputs. This parameter has a range of 0–300. The value of this parameter
determines what mix of the stereo Rvb and FX outputs is fed to the PCM 80’s
stereooutputs.Thevalues0,100,200,300correspondtospecificconfigurations
and are labeled with text instead of numbers.
Returns Value Rvb Returns FX Returns
Stereo (0) left Rvb Out to L left FX Out to L
right Rvb Out to R right FX Out to R
L=Rvb, R=FX (100) left Rvb Out to L left FX Out to R
right Rvb Out to L right FX Out to R
Mono (150) left + right Rvb Out to L left + right FX Out to L
left + right Rvb Out to R left + right FX Out to R
L=FX, R=Rvb (200) left Rvb Out to R left FX Out to L
right Rvb Out to R right FX Out to L
Stereo (300) left Rvb Out to L left FX Out to L
right Rvb Out to R right FX Out to R
Sends
Returns

1-7
Dual FX Card Operation
• The main stereo inputs are sent into the Rvb block.
• The stereo output of the Rvb block is sent into the stereo inputs of the FX block.
• The stereo output of the FX block is sent to the main left and right outputs.
Stereo Series 1
Submixer Returns
1.1 0 Stereo
Submixer Sends
1.0 0 Stereo
Submixer Routing
1.2 100 Rvb into FX
TheRoutingparameterprovidescontinuouslyvariablecontroloftheFXandRvb
effect routing: Rvb and FX in parallel, Rvb into Fx (series) and FX into Rvb
(reverse series). This parameter has a range of 0–400. The value of this
parameterdeterminestherouting/orderingofthestereoRvbandFXeffects.The
values 0, 100, 200, 300, 400 correspond to specific configurations and are
labeled with text instead of numbers.
Routing Value Effects Routing
Parallel (0) Rvb and FX are parallel
Rvb into FX (100) Rvb outputs into FX inputs (series 1)
Parallel (200) Rvb and FX are parallel
FX into Rvb (300) FX outputs into Rvb inputs (series 2)
Parallel (400) Rvb and FX are parallel
Note that the routing value takes precedence over the Sends and Returns
values. For example, if Routing is set to Rvb into FX (100), no input signal is
routeddirectly to theFX inputs— andtheRvb outputs aren’tsent directly tothe
PCM 80’s main outputs.
It is possible to arrange the stereo Rvb and FX inputs and outputs into a variety
of useful configurations by simply adjusting the Sends, Returns and Routing
parameters. The following illustrations show several of these configurations.
Each illustration contains a block diagram showing signal flow through the
Submixer, as well as the displayed values for the Sends, Returns, and Routing
parameters that will produce the configuration.
Routing
Useful Configurations

Lexicon
1-8
PCM 80 Dual FX User Guide
• The main stereo inputs are sent into the FX block.
• The stereo output of the FX block is sent into the stereo inputs of the Rvb block.
• The stereo output of the Rvb block is sent to the main left and right outputs.
Stereo Series 2
Submixer Returns
1.1 0 Stereo
Submixer Sends
1.0 150 Mono
Submixer Routing
1.2 100 Rvb into FX
Submixer Returns
1.1 0 Stereo
Submixer Sends
1.0 0 Stereo
Submixer Routing
1.2 300 FX into Rvb
• A mono mix of the left and right inputs is sent into the Rvb block.
• The stereo output of the Rvb block is sent into the stereo inputs of the FX block.
• The stereo output of the FX block is sent to the main left and right outputs.
Mono In/Stereo Out Series 1

1-9
Dual FX Card Operation
• A mono mix of the left and right inputs is sent into the FX block.
• The stereo output of the FX block is sent into the stereo inputs of the Rvb block.
• The stereo output of the Rvb block is sent to the main left and right outputs.
Mono In/Stereo Out Series 2
• The Rvb and FX blocks process the left and right inputs independently.
• The stereo outputs of both the Rvb and FX blocks are combined at the main outputs.
Stereo Parallel
Submixer Returns
1.1 0 Stereo
Submixer Sends
1.0 0 Stereo
Submixer Routing
1.2 0 Parallel
Submixer Returns
1.1 0 Stereo
Submixer Sends
1.0 150 Mono
Submixer Routing
1.2 300 FX into Rvb

Lexicon
1-10
PCM 80 Dual FX User Guide
• The Rvb and FX blocks each independently process a mono mix of the left and right inputs.
• The stereo outputs of both the Rvb and FX blocks are combined at the main outputs.
Mono In/Stereo Out Parallel
Submixer Returns
1.1 0 Stereo
Submixer Sends
1.0 150 Mono
Submixer Routing
1.2 0 Parallel

1-11
Dual FX Card Operation
• The Rvbblock processes onlytheleft input as a mono signal, and the FX block processes only the right input as amono signal.
• A mono mix of the Rvb block output is sent to the left main output. A mono mix of the FX output is sent to the right main output.
Dual Mono In/Stereo Out
Submixer Returns
1.1 0 Stereo
Submixer Sends
1.0 200 L=FX, R=Rvb
Submixer Routing
1.2 0 Parallel

Lexicon
1-12
PCM 80 Dual FX User Guide
• The Rvbblock processes onlytheright input asa mono signal, and theFX block processes only the left inputas a mono signal.
• A mono mix of the Rvb block output is sent to the right main output. A mono mix of the FX output is sent to the left main output.
Dual Mono In/Mono Out
Submixer Returns
1.1 200 FX=L, Rvb=R
Submixer Sends
1.0 200 L=FX, R=Rvb
Submixer Routing
1.2 0 Parallel

1-13
Dual FX Card Operation
Rvb Block
FX Block
Rvb and FX Block
Controls
The Rvb and FX blocks shown in the previous configurations represent the
Stereo Reverb and 4-Voice Effects. Each of these blocks has its own set of
controls, shown in the diagrams below.
These effect block controls are also found in the Submixer row of each
parameter matrix.
Press Load/✱to toggle between Rvb and FX parameters.