After unpacking the Dual Rvb 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.
Precautions
This is a read only card.
Use only with the Lexicon PCM 90.
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 90.
Copyright 1996
All Rights Reserved.
Lexicon Part # 070-11841
Lexicon Inc.
3 Oak Park
Bedford MA 01730-1441 USA
Telephone 781-280-0300
Fax 781-280-0490
www.lexicon.com
Introduction
1. Dual Rvb Card Operation
Handling the Algorithm Card............................................................... 1-1
Loading the Dual Rvb Algorithms ....................................................... 1-3
Loading the Dual Rvb Presets ............................................................ 1-4
Thank you for your purchase of the PCM 90 Dual Rvb Algorithm Card. Dual Rvb
processing adds powerful split reverb control to the control capabilities of the
PCM 90.
The Dual Rvb algorithms offer superb dual reverb and cascade configured
stereo effects. Ten new algorithms are provided on the PC card, along with 200
exciting new presets.
Each Dual Rvb algorithm contains two independent reverb blocks. Each
algorithm also has the full set of modulation and patch features featured in the
PCM 90.
Introduction
The 10 Dual Rvb algorithms are made up of combinations of four Reverb blocks:
Chamber, Inverse, Room2 and Surround Chamber. These effects and their
associated parameters will all be familiar to PCM 90 users. The Chamber effect
is identical to the PCM 90 Chamber. Surround Chamber is a variation of this
same effect. Room2 is a variation on the PCM 90 Room effect, with slightly
different Shape and Spread controls and a higher overall gain. The Inverse
effect provides a new type of reverb for the PCM 90 which is excellent for gated
and unnatural reverb effects, as well as for creating small, lively environments.
The 10 algorithms on the Dual Rvb card are created by combining these effects
in the following pairs:
Each algorithm has a different combination of Rvb blocks, but the basic
functionality of each is the same. Controls for each algorithm are arranged in
a PCM 90-type matrix. The audio parameters are identical to those in the
PCM 90. A few new parameters are found in the Inverse effects, and new
InRouting parameters allows you to select Stereo Split, Mono Split or Reverse
Mono Split as routing configurations for the Dual Mono effects, and Left
Cascade, Right Cascade or Stereo Cascade as routing configurations for the
Cascade effects.
The Algorithms
The Presets
Dual Rvb Card Banks
Bank X0 Studio
0.0 - 0.9 Environments
1.0 - 1.9 Instruments
2.0 - 2.9 Vocal
3.0 - 3.9 Drums/Perc
4.0 - 4.9 Custom
Bank X1 Live
0.0 - 0.9 Acoustic
1.0 - 1.9 Electric
2.0 - 2.9 Vocal
3.0 - 3.9 Drums/Perc
4.0 - 4.9 Custom
Bank X2 Post
0.0 - 0.9 Small Spaces
1.0 - 1.9 Medium Spaces
2.0 - 2.9 Large Spaces
3.0 - 3.9 Cool Places
4.0 - 4.9 Custom
Bank X3 Surround
0.0 - 0.9 Small Spaces
1.0 - 1.9 Large Spaces
2.0 - 2.9 Unnatural FX
3.0 - 3.9 Custom
4.0 - 4.9 "Clean Slate"
versions of the
algorithms
The PCM 90 Dual Rvb card contains a built-in library of 200 preset programs that
provide a completely new assortment of exciting and useful sounds. As in the
PCM 90, the presets are organized into banks of 50, and functionally grouped
for a wide range of applications. Be sure to experiment with all 200 presets to
get a feel for the full range of the Dual Rvb capabilities. As in the PCM 90, each
preset (except for the "Clean Slate" presets) has one or more parameters
patched to the front panel ADJUST knob, giving you instant control over the
primary aspect of the effect — without going into Edit mode.
The first bank of presets is for Music Production, the second bank is for Live
Sound, the third bank is for Audio Post Production and the last is a bank of
presets created for Surround. The “Clean Slate” presets in bank X3 are provided
as a convenient starting place when you want to create a new program from
scratch. There is one clean slate preset for each of the 10 algorithms.
We hope you will find the Dual Rvb card easy to use, and a great extension of
the power of your PCM 90. To get the most out of the card, we suggest that you
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.
DualRvbCardOperation
Dual Rvb Card
Operation
1
The Dual Rvb Algorithm Card is a standard PC card designed to be used with
the Lexicon PCM 90 (Version 1.01 or higher). Care and handling of the card, as
well as some routine precautions are noted here. Please review these before
using the card to avoid damage to the card, as well as error states in the PCM
90. Refer to your PCM 90 User Guide for information on troubleshooting the
PCM 90 itself.
The Dual Rvb Algorithm Card is designed for use ONLY with the PCM 90.
The Dual Rvb 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 90 is powered on, wait for the
completion of Power On Diagnostics and the loading of the first program
before attempting to use or remove the card.
Card algorithms will be loaded automatically into the PCM 90 on power on.
Removing the card before the completion of the normal PCM 90 power on cycle
may cause abnormal behavior.
Handling the
Algorithm Card
Care and Handling
Card Insertion
Operational Behavior
Once the algorithms have been loaded from the card, you can either remove
the card, or leave it in the PC card slot. In the PCM 90 Version 1.00, problems
can occur if you load the card, remove it, and then reinsert it without powercycling the unit.
While the PCM 90 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 90's
internal memory by loading a preset or register from one of the internal
algorithms before loading the new algorithm card.
1-1
PCM 90 Dual Rvb User Guide
Lexicon
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 both
internal algorithms and the algorithm card, you will need to perform separate
SysEx dumps for the card registers and the internal registers.
The algorithm used to create an effect must be loaded into the PCM 90 for a
SysEx dump to occur. If you do not have the algorithm card loaded into the
transmitting PCM 90, the data for the effect is not transmitted and the following
message is displayed:
Can't dump effect
Need algorithm card
If you do not have the algorithm card loaded into the receiving PCM 90 when a
valid SysEx for an effect created from a card algorithm is received, the following
message is displayed:
Effect unchanged
Need algorithm card
A placeholder is transmitted for any register which cannot be dumped due to the
absence of an algorithm card. This placeholder contains the program name and
algorithm number, but no effect parameter data. This allows an editor to identify
registers which were not sent, and the algorithm card which must be loaded to
complete the dump. The PCM 90 will always ignore the placeholder, and will
display the following message when a placeholder is received:
Effect unchanged
No data in dump
Note that registers made from algorithm cards can be freely copied between the
PCM 90's internal register banks (R0, R1) and RAM card banks (C0, C1, etc.)
without loading the algorithm card.
1-2
In order to run the Dual Rvb algorithms, the software must be loaded into the
PCM 90’s “extension” memory. To do this:
If the PCM 90 is turned off:
1.Insert the Dual Rvb algorithm card into the PC card slot.
2.Power up the PCM 90. The software will be loaded automatically.
If the PCM 90 is already running:
1.Insert the Dual Rvb 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 Rvb
2.1 (Press LOAD)
3.Press Load/✱. The following message will appear briefly to indicate the
load was completed:
Dual Rvb Card Operation
Loading the
Dual Rvb
Algorithms
Extensions now
available
If the PCM 90 is running an algorithm from a different extension card:
Loading a different algorithm card requires returning to the PCM 90'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 - P4).
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.
Once extension card software is loaded, you can remove the card from the slot.
The algorithms will remain in
the PCM 90 until the unit is
turned off. This makes the
PC card slot available for
loading and storing registers
on RAM cards.
1-3
PCM 90 Dual Rvb User Guide
Loading the
Dual Rvb Presets
Lexicon
Once the software is loaded, the PCM 90 will have access to the additional
program banks available on the algorithm card. These extension memory banks
are labeled with an X.
1.Press Program Banks repeatedly until the X banks are displayed. These
will follow all of the PCM 90's internal Program banks.
2.Use SELECT, Up and Down and Load/✱to view and load the Dual Rvb
presets.
You can edit these presets and save the changed version into the PCM 90’s
internal registers, or you can save them into RAM card register banks. If the Dual
Rvb algorithms are loaded, recalling programs created with the algorithms is as
simple as selecting and loading any PCM 90 program.
If the Dual Rvb 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 Rvb card).
Extension
R 1.1 DualStereoFX
Complete descriptions of all of the Dual Rvb presets are given in Chapter 3.
1-4
TheAlgorithmsandTheirParameters
2
The PCM 90 Dual Reverb Card uses four reverb algorithms to produce six Dual
Mono, and four Cascade effects. Each of the algorithms and its associated
parameter matrix is presented in this section.
The parameters for the Dual Rvb algorithms are identical to those in the PCM
90 with the following additions and exceptions:
InRouting
The InRouting control for the Dual Rvb algorithms varies from the InRouting
control in the PCM 90 in that three controls are provided to determine reverb
routing: Mono Split, RevMono Split, and Stereo Split.
Mono Split separates the two reverb blocks, creating two independent mono in/
stereo out reverbs. Machine A receives input from the left channel, and Machine
B receives input from the right channel.
RevMono Split separates the two reverb blocks, like the Mono Split setting, but
reverses the inputs so that A corresponds to the right channel, and B corrresponds
to the left channel.
Stereo Split creates two stereo in, stereo out reverbs. The outputs from both A
and B are stereo.
In the cascade algorithms, the three routing selections are: Left Cascade, Right
Cascade, and Stereo Cascade. Left Cascade feeds the left input to the cascade,
and ignores audio input from the right channel. Similarly, Right Cascade feeds
only the right input to the cascade. Stereo feeds left and right inputs into the
corresponding inputs to the cascade.
The Algorithms and
Their Parameters
New Parameters
The Inverse effect, which is new to the PCM 90 contains the following unique
parameters:
Duration
This parameter in the RvbDesign row determines the length of time, in milliseconds, which passes before the cutoff in Inverse effects.
Low Slope and Mid Slope
These parameters are found in the all of the Inverse Rvb Time rows. Low Slope
determines the shape of the reverb envelope for low frequencies. When set to
0, the level of low reverb remains unchanged over its Duration, then cuts off
abruptly (depending on the amount of diffusion in use). Setting Low Slope above
0 causes the level of low frequency reverb to rise smoothly from soft to loud until
the sound is cut off. The greater the slope, the softer the initial reverberation and
the more pronounced its rise. With negative values, the low frequency reverb
drops from its initial level to a quieter one before cutoff. The lower the slope, the
more pronounced the dropoff. Mid Slope is similar to Low Slope, but applies to
middle and high frequencies. The actual frequencies affected are determined by
Crossover.
2-1
PCM 90 Dual Rvb User GuideLexicon
The Reverb Blocks
Chamber
This algorithm is identical to the Chamber algorithm in the PCM 90. It produces
an even, relatively dimensionless reverberation, with little change in color as the
sound decays. The initial diffusion is similar to the PCM 90 Concert Hall
algorithm, but the sense of size and space is much less obvious. This characteristic, along with low color in the decay tail, makes Chamber useful on a wide
range of program material. It is especially useful on spoken voice, giving a
noticeable increase in loudness with very low color.
2-2
Inverse
This algorithm allows you to vary the slope of the initial portion of the reverb
envelope. The slope can decay, remain level, or rise over a variable time interval.
When the time interval is up, the reverberation cuts off abruptly. The resulting
effect is similar to a gate, but is not at all dependent on the level or complexity
of the input signal. Slopes are adjustable over a negative, even, or positive slope.
Positive slopes create inverse effects, while more even slopes create gated
effects. Negative slope values have rather natural reverb tails.
Shape and Spread characteristics, and an overall higher gain. This algorithm
provides an excellent simulation of a very small room which is useful for dialog
and voiceover applications, but which may be too colored for some sustained
musical tones. Increasing the Size/Shape/Spread parameters produces an
excellent reverb, and an Infinite parameter allows you to freeze the reverberation for as long as you like.
The Algorithms and Their Parameters
Room2This algorithm is a variation of the Room algorithm in the PCM 90 with different
This algorithm is similar to the PCM 90 Chamber, but has a mono output. This
ouput is added to the output of another reverb block 180° out-of-phase to allow
a surround decoder to identify which signals are to be routed to the surround
channel.
Note: This algorithm must be used through a surround decoder to avoid
undesireable effects. When used with another reverb block (as in the Matrix
Chamber algorithm, its entire signal can be canceled out when used in mono.
In stereo, Surround Chamber can cloud the mix if it is of comparable loudness
to the Chamber side of the algorithm.
Surround Chamber
2-3
PCM 90 Dual Rvb User GuideLexicon
Dual Mono Reverbs
Room2-Room2
2-4
The Algorithms and Their Parameters
Inverse-Inverse
2-5
PCM 90 Dual Rvb User GuideLexicon
Chamber-Inverse
2-6
The Algorithms and Their Parameters
Inverse-Room2
2-7
PCM 90 Dual Rvb User GuideLexicon
Chamber-Chamber
2-8
The Algorithms and Their Parameters
Matrix Chamber is designed to create surround-encoded reverb mixes. The
algorithm sends the Chamber effect to the front speakers and the Surround
Chamber effect to the surround speakers.
Ths effect should be recorded , monitored and played back in surround. The
PCM 90 output must be decoded with any popular surround decoder.
Matrix Chamber
2-9
PCM 90 Dual Rvb User GuideLexicon
Cascade Reverbs
Chamber>Room2
2-10
The Algorithms and Their Parameters
Inverse>Chamber
2-11
PCM 90 Dual Rvb User GuideLexicon
Room2>Chamber
2-12
The Algorithms and Their Parameters
Inverse>Room2
2-13
PCM 90 Dual Rvb User GuideLexicon
2-14
ThePresets
3
The Dual Rvb Algorithm Card has 200 factory-designed presets which are
organized into four banks of 50 each (labeled X0, X1, X2, and X3). As with the
internal PCM 90 banks, each bank is organized in a matrix of 5 rows of 10. Press
the front panel Program Banks button to display the first bank. Press it again
to switch to another bank. Simultaneously press Program Banks and either theUp or Down button to backstep through the banks. The display will show the
bank label, the row label, the matrix location, and the preset name.
Turn SELECT to scroll through all of the presets in a bank in numerical order. Use
Up or Down to jump forward or backward by 10. Press Load/✱ to load any
displayed preset.
In the Program Banks mode (as in the Register Banks mode), ADJUST is a soft
knob. Each preset has one or more parameters patched to this knob, providing
a quick way to make useful changes to the effect. When you turn ADJUST, the
display will show the name assigned to ADJUST, as well as the patch value.
Continue turning ADJUST to alter the patch value along its available range. The
most common patch to the ADJUST knob is a Blend control that crossfeeds
between the two effects. When set to the middle value, the outputs of both effects
are balanced at -6dB. To optimize your levels, you can set the A Out Lvl or the
B Out Lvl to its full setting. In addition, many of the presets can be synchronized
to tempo. To set the tempo, press the front panel Tap button twice in time with
the beat. (Tempo can also be dialed in as a parameter value, or it can be
determined by MIDI Clock.) Be sure to try these effects synchronized with MIDI
sequence and drum patterns. (Look for tempo driven presets with the KeyWord
Tempo.)
The Presets
The preset names often give clues as to the routing configuration used. Effect
blocks configured in series are separated by the symbol >. Dual Mono In/Stereo
Out effects are separated by the symbol +. Stereo In/Stereo Out effects are
separated by the symbol /.
Each preset is described in this section with a header which indicates the matrix
location, the program name, the name assigned to the ADJUST knob, and the
range of ADJUST knob control, as well as the KeyWord assignments. This
header is followed by a brief description of the effect. Custom Controls are listed
for each preset where applicable.
3-1
PCM 90 Dual Rvb User Guide
Program Bank X0
Studio
Lexicon
Environments
0.0Lunar BlueADJUST:Lunar Cycle
Keywords: Large, Custom, Special FX, Splits
Captures the mood of the cycles of the moon. Full Moon is a bright, natural sound while
New Moon provides a dark, unnatural, inverse effect. ADJUST cycles between the two.
Use the Custom Control: Full Moon Fury in the Soft Row to add a sizzling feedback to the
Full Moon.
Custom 1: Full Moon Fury
0.1Air 1/Air 2ADJUST:Blend
Keywords: Bright, Dark, Small, Splits
Air 1 is a small bright room. Air 2 is the same size with more low end/dull sound. ADJUST
is patched to OutLvl in each algorithm to allow you to blend the two rooms.
0.2Ambi 1/Air 3ADJUST:Blend
Keywords: Bright, Dark, Small, Splits
Similar to Air 1/Air 2. Ambi 1 is a small bright room with Mid RT set to minimum. Air 3 is
the same room with a dull, muffled sound. ADJUST is patched to the OutLvl and allows
you to blend the two rooms.
0.3Big/BiggerADJUST:Blend
Keywords: Bright, Echo, Large, Splits
Very large rooms with plenty of available reflections. ADJUST blends the two rooms.
Increasing ADJUST causes more reverb and reflections to appear.
0.4Big RoomsADJUST:Blend
Keywords: Mono, Room, Large, Splits
Large rooms with a long reverb time. Big Room 2 gives you a more distant sound.
ADJUST allows you to blend the two rooms.
0.5HallA /HallBADJUST:Blend
Keywords: Room, Long, Large, Splits
Typical large hall preset. Generous Mid Rt and Size settings allow for plenty of decay
time. ADJUST blends the two halls.
0.6Living DeadADJUST:Blend
Keywords: Small, Short, Natural, Splits
Chamber rooms from a lively, reflective locker room to a muffled, carpeted room.
0.7Wave/NuHallADJUST:Blend
Keyword: Bright, Large, Long, Splits
Wave produces a large booming effect with a quick reverb decay. NuHall is a typical large
hall with a moderate amount of reflections.
0.8Dual ChambrsADJUST:Blend
Keywords: Bright, Chamber, Natural, Splits
Two chambers with varied brightness. Chambers are selectable via ADJUST.
0.9CrusherADJUST:Bark
Keywords: Room, Special FX, Splits
An interesting effect with AR Env patched to the output of channel A for a dynamic
pumping effect. Channel B provides some light ambience to smooth the process.
3-2
Instruments
The Presets
1.0Studio A + BADJUST:Blend
Keywords: Acoustic, Mono, Room, Splits
A Mono Split preset that emulates a studio setting. Studio A is a smaller drier sounding
room than Studio B where higher Mid Rt and Shape settings add a more reflective
sounding effect. ADJUST blends A & B.
An inverse chamber mimics the dry amplifier sound associated with close miking.
ADJUST adds some room ambience into the track. No need to set up all those extra
ambience mics anymore.
Two nice sounding vocal rooms, one with a clean vocal reverb, the other a vocal reverb
room with echo, feedback patched to a pedal control, and infinite “bottomless pit” reverb
activated via Footswitch 1. Delays are Tap tempo controlled.
This preset includes a small, clear environment with a very short reverb time. Use
ADJUST to add a medium-sized room with a very natural and clear sound.
This preset includes a large, clear space with good high-frequency response. The second
chamber has a short reverberation time with multiple echo reflections. ADJUST toggles
the two.
A great sounding gate with a fairly quick reverb decay time. Room is a simple small
sized room with little reverb.
Custom 1: Room Brightness
3-5
PCM 90 Dual Rvb User Guide
Lexicon
Custom
4.0Rise n’VerbsADJUST:Blend
Keywords: Bright, Echo, Splits, Slap FX
A large room with a high Shape setting to give an inverse effect. Generous Mid RT
settings allow for plenty of reverb. ADJUST blends the two rooms.
Custom 1: Rise A Depth
Custom 2: Rise B Depth
4.1Brick n ‘WoodADJUST:Blend
Keywords: Acoustic, Indoor, Medium, Splits
Medium size rooms with moderate amounts of Mid Rt. The Brick room setting is brighter
and more pronounced than the Wood room setting. ADJUST blends the two rooms.
Custom 1: Brick Liveness
Custom 2: Wood Room Type
4.2Grit VerbsADJUST:Blend
Keywords: Large, Special FX, Unnatural, Splits
Large rooms with different Mid RT settings which are adjustable via ADJUST. When the
Grits rise, the Mid RT increases.
A great special effect with A and B providing drastically different effect options. With
ADJUST set to Rise, maximum Duration and Shape settings create a reverse rumbling
effect. ADJUST set to decay gives a tinny reverberation effect.
4.9TrembleRobotADJUST:Mottle
Keywords: Mono, Special Effects, Unnatural, Splits
Lots of movement and modulation. The left side is a long reverb with an LFO modulating
OutLvl. ADJUST controls the pulsing speed of the level modulation while Axiom controls
the depth. Machine B has high cut tied to a triggered switch that opens and abruptly shuts.
This reverb has a pair of very short delays with a ton of feedback to create a robotic effect.
Torque controls the aggression of the filter sweep effect triggered via Sw1. Overhang sets
the amount of dark reverb tail left over after the high cut filter slams down. Wild!
A mono Split preset for brass and strings. The brass room is bright and punchy. The string
room is full of reverb, with reflections and long decay time with a slow attack.
An inverse chamber with a short duration and a small slope, creating a slightly gated
effect, and a medium size, clear sounding room with short predelay. ADJUST adds the
second chamber.
Mono Split chamber rooms for electric and acoustic guitars. The electric room has a
washy effect with a slow build and multi-echo effects. The acoustic room gives the guitar
an aggressive sound.
1.4Spritz>VerbADJUST:Amt of Verb
Keywords: Chamber, Instrument, Echo, Cascade
The first chamber is a large room with multiple echo reflections and Mid RT set to the
shortest duration. The second chamber is a smaller space with long Mid RT. ADJUST
adds the second chamber to create a very diffuse reverberated sound.
A very clear, sibilant room is transformed into a huge, diffuse chamber using ADJUST.
The second chamber helps accomplish this with long Mid RT and predelay.
The first chamber is a very small space, but has enough echo feedback to give a much
larger overall sound. The second chamber is a huge, diffuse room. ADJUST adds the
second chamber.
An inverse chamber with long duration, small slope and high diffusion settings to create
a gated reverb. The second chamber is a large, clear hall with a similar frequency
response. ADJUST adds the second chamber.
This preset uses an inverse chamber with a short duration and very little low-end
response. The second chamber is a small room with good high-end response. ADJUST
adds the second chamber.
Vocal
2.0VocalsADJUST:Contour
This vocal reverb preset ranges from a bright, almost plate-like room to a mid-size
average room. ADJUST controls the bass and treble settings.
2.1Sax+Vox HallADJUST:Blend
A mono split preset adjustable between a bright chamber with echoes (great for sax) and
a vocal chamber.
2.2LiveVoxPlateADJUST:Blend
Mono split chamber rooms designed to sound like plates. A Vocal plate with medium Rt
and bright timbre and a Dim plate with a darker sound.
A medium-duration inverse chamber, with a large slope on the low end to give it a gated
sound. This low-end response is enhanced by adding the second chamber, which has a
very high-end responsive, diffuse room with long Mid RT.
Bright reverb spaces with a dynamic delay/reverb accent for transients. Delay time is
tempo-controlled. Perfect to widen a choir.
Custom 1: Feedback
Custom 2: Liveness
2.6Lead+BackVoxADJUST:Blend
Keywords: Live PA, Mono, Vocal, Splits
This split mono preset creates two very different reverbs to use on vocals. A short, bright
reverb is used for the lead vocals. The background vocals get a much more pronounced
reverb to widen their sound by using a longer decay time.
The first chamber uses a medium duration with a high shape setting, creating a very
diffuse, inverse reverberation. The second chamber is a very large, diffuse room which
is added with ADJUST.
A dual purpose mono split preset for drums and vocals. The drum setting is a medium
multi-purpose percussion room. The vocal room is a nice reverb room with a slight echo.
Bright reverb rooms with a dynamic delay/reverb accent for transients. Delay time is
tempo controlled.
Custom 1: Delay Regen
Custom 2: Liveness
4.1StompVox FXADJUST: Decay Power
Keywords: Vocal, Tempo, Special FX, Splits
Designed for the vocalist who likes to add effects in short duration to voice. Mid RT can
be cranked by holding down Footswitch1. To add a few seconds of strong delays, hold
down Footswitch 2. The delays are tempo controlled.
Custom 1: Regen Cycles
4.2Flitz>EchoADJUST:Amount of Echo
Keywords: Gated, Echo, Unnatural, Cascade
A very sibilant chamber with long duration setting, creating a very long inverse reflection.
ADJUST adds a very large second chamber with the long echo settings and Mid RT.
This split mono preset provides two distinct reverbs for a horn section. The soloist gets
a stong reverb with a long reverb time while the reverb designed for the horn section is
much more subtle.
Custom 1: Section Brightness
Custom 2: Solo Brightness
4.4SoliloquyADJUST: Bass Multiply
Keywords: Vocal, Long, Special FX, Cascade
The mono level acts as a trigger for the reverb time. While signal is present, the reverb
is very subtle. As signal lowers or disappears, Mid RT boosts significantly, processing the
ends of phrases with a thick, lush reverb.
Custom 1: Liveness
4.5Room>ChamberADJUST:Amount of Chamber
Keywords: Bright, Chamber, Room, Cascade
A medium size, diffuse chamber and a much larger, brighter chamber. ADJUST adds the
second chamber.
Booth 1 is a small, dull sounding room with a slight pre delay. Booth 2 is a small room
with a more high end, open sound. ADJUST lets you blend the two rooms.
This preset moves the perceived sound source from nearby, to far away, while maintaining the environmental characteristics. One chamber emulates a small, slightly reverberant room, while the other creates the same environment with more distance.
The A side emulates a brick basement room. The B side is greenhouse where the great
amount of glass makes the sound very reflective and bright.
Custom
4.0Up & DownADJUST:Speed (1-5)
Keywords: Special FX, Large, Cascade
A cool special effects preset with bright escalation and a large, dark fall. ADJUST controls
the speed at which the escalation and fall occur.
Custom 1: Inverse Height
3-15
PCM 90 Dual Rvb User Guide
Lexicon
4.1SilosADJUST:Blend
Keywords: Special FX, Splits
Chamber rooms with characteristics of a grain silo and a missile silo. The grain silo is
darker, hollow sounding with a long reverb decay, the missile silo has a distinct metal
sound to it with short reverb reflections.
Two very diffuse chambers. The first is an inverse chamber with a large slope, shape and
duration which creates a sound with two distinct echoes. The second chamber has a very
long Mid RT setting, creating a tank effect when it is added with ADJUST.
An inverse chamber with a long duration setting. ADJUST adds another chamber with
a long Mid RT and a full diffusion setting. The result is a very large, diffuse reverberation
with multiple reflections.
Custom 1: Hall Type
4.4Wind+ThunderADJUST:Blend
Keywords: Custom, Special FX, Mono, Splits
Use this split mono preset with your nature effects. Use the wind reverb to add an eerie
ambience to your signal. The Thunder reverb thickens a clap of thunder and the roar
travels off in the distance.
4.5Pitfall!ADJUST:Pit Depth
Keywords: Large, Special FX, Dialog, Cascade
Input Level acts as an inverse trigger to the reverb time. The weaker the signal gets, the
longer the reverb time. Add to screams to simulate falling down a reverberant bottomless
pit.
Custom 1: Delay Feedback
4.6TemporalRiftADJUST:X Factor
Keywords: Large, Special FX, Cascade
An inverse reverb that can add a lot of strangeness to dialog or effects.
Custom 1: Rift Depth
4.7RicochetsADJUST:Blend
Keywords: Special FX, Mono, Cascade
Two different reverb effects for bullets ricocheting off of reverberant objects.
The first chamber uses a high shape setting to simulate a reverse echo sound in a
medium-sized environment. The second chamber is a much larger room with a very long
predelay. ADJUST adds the second chamber.
Combines recirculating echoes which fall away quickly once signal is absent. ADJUST
lengthens the reverb decay, which will mask the reflection echoes. For vocals.
The front chamber uses large size, Mid RT, Shape and diffusion settings. The surround
chamber is very similar in reverberation pattern and is added to the preset with ADJUST.
A large, clear chamber with overall brightness controlled by ADJUST. ADJUST adds
people in the room to make it more diffuse without affecting the size.
1.8Bayside ExpoADJUST:Fade
Keywords: Large, Surround, Long
A very large expo center. Lots of room to get lost in. Select the surround levels with
ADJUST.
This surround preset has dual characteristics. The front of the chamber is medium size.
The rear wall has a long decay and a ringy sound associated with metallic walls. ADJUST
controls the level to the rears.
Unnatural FX
2.0InvFront2BakADJUST:Front 2 Back
Keywords: Large, Surround, Drums/Perc, Splits
Large surround chamber preset with pronounced high end. ADJUST switches between
front and rear channels.
Clear chamber with long echo delay times controlled by tempo function. Echo Feedback
is controlled by ADJUST.
The Presets
2.2DynamicSwellADJUST:Delays
Keywords: Dynamic, Chamber, Surround, Special FX
A medium, diffuse matrix chamber. Input level acts as an inverse trigger for a set of delays
in the front, and a long bright reverb in the rear. While signal is present the audio is fairly
dry. As the level lowers or stops, the delays and reverb become apparent. ADJUST
controls the delay times.
2.7Cyber VortexADJUST:Vortex Ferocity
Keywords: Long, Dialog, Surround, Tempo
A wild stuttering reverb. Stutter rate is tempo driven. Sort of like a turbo-tremolo.
2.8Yodel!!ADJUST:Fade/Distance
Keywords: Long, Special FX, Surround, Slap FX
Sing it from the Alps! A long predelay in the rear makes a distant reply to the signal. Use
ADJUST to make the reply move further away.
2.9CyberVoxADJUST:Fade
Keywords: Dialog, Special FX, Surround
This special effect uses tight delays with high feedback to create a “cyber” sound for
dialog. Input to the fronts are somewhat gated. The lower the input level, the longer the
decay time in the rear. Use ADJUST to increase or decrease the surround levels.
Custom
3.0Bombs Away!ADJUST:Srrnd Decay
Keywords: Film-ADR, Surround, Special FX, Splits
A large size chamber with long Low RT varied by LFOs. ADJUST increases Mid RT to
full value, creating a ‘Nuclear Meltdown’ effect.
A medium, diffuse surround chamber with a thick shape setting. ADJUST alters the
chamber liveness. Great on kick drums or an entire submix.
Custom 1: Master Delay
3.2BypasStompFXADJUST:Decay
Keywords: Chamber, Special FX, Surround
This is a large, breathy chamber. Use a footswitch to mute either or both of the machines
in this preset. Footswitch 1 will mute the front signal. Footswitch 2 will mute the surrounds.
3-19
PCM 90 Dual Rvb User Guide
Lexicon
3.3StompSwellFXADJUST:Fade
Keywords: Large, Special FX, Surround
With a footswitch, you can control the decay times of the front and back of this chamber.
Footswitch 1 swells the front decay. Footswitch 2 swells the rears.
3.4RollinThundrADJUST:Fade
Keywords: Large, Long, Surround, Special FX
An exaggerated decay that rolls over you from front to rear. Use ADJUST to control the
surround levels.
Custom 1: Master Decay
3.5Dark CavernADJUST:Fade
Keywords: Large, Dark, Surround, Long
Big and brooding. ADJUST controls the Fade to rear.
Custom 1: Master Delay
3.6InvertigoADJUST:Inverse Delay
Keywords: Special FX, Surround, Dialog
Listen to this one at 100% wet. An inverse reverb flies over you from the rear to meet the
dry signal in the front. Super flipped tape effect! The inverse effect delays the dry signal
500-1000ms, depending on the setting of ADJUST.
3.7Invertigo2ADJUST:Inverse Delay
Keywords: Special FX, Surround, Dialog
Listen to this one at 100% wet. Similar to Invertigo, with the inverse reverb in the front,
and flying overhead to meet the dry signal in the rear. The inverse effect delays the dry
signal 500-1000ms, depending on the setting of ADJUST.
3.8Guitar HeroADJUST:Fade
Keywords: Large, Guitar, Surround, Long
The perfect preset to put a wailing soloist on stage in a huge auditorium. Use ADJUST
to increase or decrease the surround levels.