Yamaha REX50 - Manual (Page 17)

This extremely versatile compressor program allows
creation of a wide range of compression and limiting
effects. It can simply be used to reduce the dynamic
range of a signal, to smooth out the sound of an elec­
tric bass or add sustain to an electric guitar. It can help
to reduce volume fluctuations as a vocalist moves
closer to or away from a microphone, or limit the max­
imum level of a signal to prevent overloading certain
types of amplification of recording equipment.
Attack Time (ATTACK): 1 — 40 ms
Determines how long it takes for full compression
to be reached after the effect is triggered (i.e. the
THRESHOLD level is exceeded). The right ATTACK
setting is essential to preserve the natural initial at­
tack sound of the instrument used — or modify it
as desired.
Release Time (RELEASE): 10 — 2,000 ms
Determines how long it takes for compression to be
released after the input signal drops below the
THRESHOLD level. The RELEASE setting is impor­
tant to preserve the natural release sound of the in­
strument used. Too short a RELEASE setting will
cause the sound to be cut off unnaturally.
Threshold Level (THRESHOLD): -48----------- 6 dB
Determines the level of the input signal at which the
compression effect begins. Set at a low level ( - 4 8
dB) all input signals will be compressed. At a higher
level, only those signals exceeding the THRESHOLD
level will be compressed, thus producing a limiting
effect. The THRESHOLD level must be set to match
the level and characteristics of the instrument be­
ing used, as well as the desired effect.
Compression Ratio (RATIO): 1 — 20.0
This parameter sets the "amount" of compression
applied to the input signal. A setting of 1.0 produces
no compression, while a setting of 20.0 produces
maximum compression.
Detect Delay (PET. PLY): -50.0 — -tSO.O ms
This parameter sets an initial delay between the time
the input signal begins (the time the THRESHOLD
level is exceeded) and the time the compression ef­
fect begins. This delay can be used to allow the in­
itial attack of an instrument to come through com­
pletely unaffected while the rest of the signal is com­
pressed. A minus DET DLY setting causes the com­
pressed sound to appear before the direct instrument
sound.
/ 15. COMPRESSOR /
Delay Time (DELAY): 0.1 — 400.0 ms
Determines the time delay between the direct sound
and the compressed effect sound.
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