Lexicon PCM80 DUALFX Owner's Manual
PCM 80
Dual FX
Algorithm Card
User Guide
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.
Precautions
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.
Copyright 1997
All Rights Reserved.
Lexicon Part # 070-11143 Rev 1
Lexicon Inc.
3 Oak Park
Bedford MA 01730-1441
Telephone 781-280-0300
Fax 781-280-0490
www.lexicon.com
PCM 80
Dual FX
Algorithm Card
User Guide
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
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
Thank you for your purchase of the PCM 80 Dual FX Algorithm Card. Dual FX
processing brings even greater control capabilities to the PCM 80, along with the
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.
Introduction
Configuration and routing control is provided by a dedicated Submixer incorporated 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 configurations on the fly — changing, for example, from reverb-into-effects to effects-intoreverb.
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.
The 25 Dual FX algorithms are made up of combinations of the following 4-voice
Effect and Reverb blocks.
The Submixer
Rvb and FX 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 6voice effects, and the Rvb effects are identical to those in the PCM 80.
The Algorithms
The 25 algorithms on the Dual FX card represent all of the possible combinations
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
PCM 80-type matrix. The audio parameters are identical to those in the PCM
80. New control parameters are found in the Control row and a new Submixer
row.
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
The PCM 80 Dual FX card contains a built-in library of 250 preset programs that
provide not only a comprehensive array of effects configurations, but a whole
new assortment of exciting and useful sounds. As in the PCM 80, the presets are
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
range of the Dual FX capabilities. As in the PCM 80, each preset (except for the
bank X4 "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 stereo presets in banks X0, X1 and X2 are designed to process stereo input
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 for such applications as: re-mix processing, processing stereo
submixes, processing material with sources that “move” within the stereo field
and, of course, processing instruments or samples that have been recorded with
stereo miking techniques. To get the most from these presets, both inputs should
be used. (To process a mono source, send the same signal to each input).
The Mono In/Stereo Out presets in bank X2 create a stereo image from a 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 bank X3 can be used either to 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.)
The Dual Mono In/Mono Out presets in banks X3 and X4 provide two completely
independent mono effects. The left in/out is routed through a mono 4 voice
effect. The right in/out is routed through a mono reverb. These are useful when
working with material intended for a mono mix, or for “in-line” processing with the
PCM 80 connected to channel inserts. The “Clean Slate” presets in bank X4 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 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 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.
Dual FX Card Operation
Dual FX Card
Operation
1
The Dual FX Algorithm Card is a standard PC card designed to be used with the
Lexicon PCM 80 (version 1.10 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 80. Refer
to your PCM 80 User Guide for information on troubleshooting the PCM 80 itself.
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 and the 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 the card before the completion of the normal PCM 80 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 80 Version 1.00, problems
can occur if you load the card, remove it, and then reinsert it without powercycling 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.
1-1
PCM 80 Dual FX 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 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
If you do not have the appropriate algorithm card loaded into the receiving 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
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 80 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 80's internal register bank (R0) and RAM card banks (C0, C1, etc.) without
loading the algorithm card.
1-2
In order to run the Dual FX algorithms, the software must be loaded into the PCM
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:
Dual FX Card Operation
Loading the Dual FX
Algorithms
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.
Once extension card software is loaded, you can remove the card from the slot.
The algorithms will remain in
the PCM 80 until the unit is
turned off, or a new algorithm
card is loaded. This makes
the PC card slot available for
loading and storing registers
on RAM cards.
1-3
PCM 80 Dual FX User Guide
Loading the
Dual FX Presets
Lexicon
Once the software is loaded, the PCM 80 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 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
internal registers, or you can save them into RAM card register banks. If the Dual
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.
1-4
Dual FX Card Operation
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
arrange any combination of reverb and effects blocks in any configuration simply
by changing the three main Submixer controls: Sends, Returns and Routing.
Additional controls are provided for each block: Input Level, Input Width, Output
Width, Output Level, High Cut and Low Cut filters, and Wet/Dry Mix.
Using the Submixer
The Dual FX Card contains a
complete dual-channel
effects mixer.
1-5
PCM 80 Dual FX User Guide
Lexicon
The Submixer appears as row 1 on the parameter matrix of each of 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.
The key to using the Sub Mixer parameters is understanding what the Sends and
Returns parameters do, and how they interact with the Routing Parameters.
Sends
Returns
The Sends parameter routes the PCM 80’s two panned input signals to the four
effect inputs (the Rvb and FX blocks). This parameter has a range of 0–300. The
value of this parameter determines what mix of the left 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
stereo outputs.The values 0, 100, 200, 300 correspond to specific configurations
and are labeled with text instead of numbers.
1-6
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
Dual FX Card Operation
The Routing parameter provides continuously variable control of the FX and Rvb
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
parameter determines the routing/ordering of the stereo Rvb and FX effects. 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
routed directly to the FX inputs — and the Rvb outputs aren’t sent directly to the
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
Stereo Series 1
• 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.
Submixer Sends
1.0 0 Stereo
Submixer Returns
1.1 0 Stereo
Submixer Routing
1.2 100 Rvb into FX
1-7
PCM 80 Dual FX User Guide
Stereo Series 2
• 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.
Lexicon
Submixer Sends
1.0 0 Stereo
Submixer Returns
1.1 0 Stereo
Mono In/Stereo Out Series 1
• 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.
Submixer Routing
1.2 300 FX into Rvb
Submixer Sends
1.0 150 Mono
1-8
Submixer Returns
1.1 0 Stereo
Submixer Routing
1.2 100 Rvb into FX
Mono In/Stereo Out Series 2
• 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.
Dual FX Card Operation
Submixer Sends
1.0 150 Mono
Submixer Returns
1.1 0 Stereo
Stereo Parallel
• 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.
Submixer Routing
1.2 300 FX into Rvb
Submixer Sends
1.0 0 Stereo
Submixer Returns
1.1 0 Stereo
Submixer Routing
1.2 0 Parallel
1-9
PCM 80 Dual FX User Guide
Mono In/Stereo Out Parallel
• 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.
Lexicon
Submixer Sends
1.0 150 Mono
Submixer Returns
1.1 0 Stereo
Submixer Routing
1.2 0 Parallel
1-10
Dual FX Card Operation
Dual Mono In/Stereo Out
• The Rvb block processes only the left input as a mono signal, and the FX block processes only the right input as a mono 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.
Submixer Sends
1.0 200 L=FX, R=Rvb
Submixer Returns
1.1 0 Stereo
Submixer Routing
1.2 0 Parallel
1-11
PCM 80 Dual FX User Guide
Dual Mono In/Mono Out
• The Rvb block processes only the right input as a mono signal, and the FX block processes only the left input as 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.
Lexicon
Submixer Sends
1.0 200 L=FX, R=Rvb
Submixer Returns
1.1 200 FX=L, Rvb=R
Submixer Routing
1.2 0 Parallel
1-12
Dual FX Card Operation
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.
Rvb Block
FX Block
Rvb and FX Block
Controls
These effect block controls are also found in the Submixer row of each
parameter matrix.
Press Load/✱ to toggle between Rvb and FX parameters.
1-13
PCM 80 Dual FX User Guide
Lexicon
These parameters are described below, in the order in which they appear in the
Submixer row. (All other effect parameters are identical to those in the PCM 80,
and are described in the PCM 80 User Guide.)
RvbMix, FX Mix
These are independent wet/dry mix controls for the Rvb and FX effect blocks.
RvbInLvl, FX InLvl
These are independent input level controls for the Rvb and FX blocks.
Rvb In W, FX In W
These are input width controls for the Rvb and FX blocks. These are essentially
the same as the PCM 80 FX Width and Rvb Width parameters. The difference
is that the width control in the Dual FX algorithms is located at the input to the
effect. This makes it possible to independently alter the stereo image of material
feeding the two effect blocks.
RvbOutLvl, FX OutLvl
These are independent output level controls for the Rvb and FX blocks.
Rvb Out W, FX Out W
Like Rvb In W and FX In W, these parameters allow independent control of the
stereo image of the output of each effect block.
RvbHiCut, FX HiCut
These parameters provide independent 6dB per octave, stereo high-cut filters
on the outputs of the Rvb and FX blocks.
1-14
RvbLoCut, FX LoCut
These parameters provide independent 6dB per octave, stereo low-cut filters on
the outputs of the Rvb and FX blocks.
The Dual FX Card uses five Reverb blocks and five Multi-Effect blocks to
produce 25 Dual FX algorithms. The five reverb blocks and the five multi-effect
blocks are described on the following pages. Each of the 25 algorithms which
can be configured from these blocks is presented on a separate page, following
the block descriptions. These pages give you easy reference to the diagram of
the specific reverb and effect blocks used in the algorithm, as well as the
complete parameter matrix for that algorithm. The control and submixer parameters which allow configuration and routing of the effect blocks are described in
the preceding chapter. Refer to the PCM 80 User Guide for detailed descriptions
of all other effect parameters.
The Dual FX Blocks and the Algorithms
2
The Dual FX Blocks
and the Algorithms
2-1
PCM 80 Dual FX User Guide
The Reverb Blocks
Lexicon
Concert Hall
Plate
This algorithm is identical to the Concert Hall algorithm in the PCM 80. It
emulates a real concert hall. The reverberation is very clean, and designed to
remain behind the direct sound — adding ambience, but leaving the source
unchanged. This effect has a relatively low initial echo density which builds up
gradually over time.
This algorithm is identical to the Plate algorithm in the PCM 80. It mimics the
sound of metal plates, with high initial diffusion and a relatively bright sound. This
makes them a good choice for enhancing any type of percussion.
2-2
The Dual FX Blocks and the Algorithms
This algorithm is identical to the Chamber algorithm in the PCM 80. It produces
an even, relatively dimensionless reverberation, with little change in color as the
sound decays. The initial diffusion is similar to the Concert Hall algorithm, but the
sense of space and size is much less obvious. This characteristic, along with the
low color in the decay tail, makes Chamber useful on a wide range of material.
It is especially useful on spoken voice, giving a noticeable increase in loudness
with very low color.
Chamber
This algorithm is identical to the Inverse algorithm in the PCM 80. It 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.
Inverse
2-3
Loading...