Lexicon PCM 91 - Page 68

3-7
Algorithms and Parameters
PCM 91
CONCERT HALL This algorithm 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 also features a post- reverb compressor which can be used to shape the reverb tail in unusual ways. Spatial EQ controls, following the compressor, can be used to widen or narrow low-frequency stereo separation. A dry signal path allows you to process material with or without reverberation. This is useful in live recordings.
RefDly L
RefLvl L
RefDly R
RefLvl R
Low Rt Mid Rt
Size
Crossover
Rt HC
Def
RvbOutLvl
InLvl
Bass
Boost
Gain
In
Width
Out
Width
Compressor/
Expander
Spin Chorus
Link
Depth
Diffusion
Dry Signal Dry Signal
SpEQ
Premix
SpEQ
Premix
Crossover
High
Cut
Pre
Delay
Gain Detect
Look
Ahead
Compressor
Compressor/Expander
Ratio
Threshold
Gain
Expander
Ratio
Threshold
Gain
Attack
Release
Spread
Shape
Spatial EQ
2 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 3 3.0 3.1 3.2 4 4.0 4.1 4.2 4.3 4.4 5 5.0 5.1 5.2 6 6.0 6.1 6.2 6.3 7 7.0 7.1 7.2 7.3 7.4 7.5 7.6 0 0.0 0.1 0.2 0.3 0.4 1 1.0 1.1 1.2 1.3 1.4
Controls Mix Time Design Reflect Compress Expand Spatial EQ Modulation Patches
In Lvl In Width RvbOutLvl Out Width
Low Rt Mid Rt Crossover Rt HC Pre Delay Size Diffusion Shape Spread Def Chorus Link High Cut *Mstr Dly/Lvl *Dly/Lvl L *Dly/Lvl R Ratio Threshold Gain LookAhead Attack Ratio Threshold Gain Premix Crossover Gain BassBoost *Mod:LFO1 *Mod:LFO2 *Mod:AR Env *Mod:Follow *Mod:Latch *Mod:Sw 1 *Mod:Sw 2
Patch 5 Patch 6 Patch 7 Patch 8 Patch 9Patch 4Patch 3Patch 2Patch 1Patch 0
2.9
Depth Spin
4.5
Release
7.7 7.8
*Mod:S&Hold*Mod:Delay
Custom *ADJUST *Control 1 *Control 2 KeyWord 2 KeyWord 3 KeyWord 4*Control 3 *Control 4 KeyWord 1
Note that the compressor and expander controls are computed simultaneously.