Arturia KORG MS-20 V User Manual page 102

ATTACK controls the onset of the compression. (0.010 to 1000 ms)
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RELEASE controls how quickly the compression 'lets go' of the audio. (1.00 to
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2000 ms)
THRESHOLD controls the level at which compression begins. (-60 to +20 dB)
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OUTPUT GAIN controls how much gain will be added or removed from the
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output. (-36 to +36 dB)
RATIO The ratio of uncompressed to compressed level changes. (1.00 to 100)
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At 1.00, no compression occurs. Most of the range of the RATIO knob happens between 1.00 and
20.0; this covers everything from very light and musical to more forceful compression. Above 20,
compression becomes limiting , where the idea is to prevent a signal from never going above a certain
amount. Hard limiting can have a strong effect on the sound, which might or might not be useful. The
top of the range is 100 to 1, which is effectively brickwall limiting , where no signal is ever allowed to go
above a certain level. This is often used for digital mastering to prevent clipping.
MAKEUP is an automatic makeup gain control that you might find works very
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well for you.
97 Arturia - User Manual KORG MS-20 V - The Effects Panel