Sonnox Oxford Dynamics - Manual (Page 21)

4.7 TimingFunctions 4 COMPRESSOR
4.7.3 CompressorHoldControl
The hold control varies the amount of time between a reduction of levels above the
threshold and the onset of the release time. It provides a period after gain reduction
where a slower rate of recovery occurs.
hold = nearly min
hold = intermediate position, release = min
hold = 75% of max
The above three diagrams show the action of the hold control from nearly minimum to
75% of maximum, with an intermediate position with the release set to minimum. When
the compressor is in recovery after a loud passage, the full value of the release setting
time is reached only gradually over the period of the hold time.
This produces an extended period when the release time is maintained at slower rates in
order to allow faster gain recovery without excessive distortion at low signal frequencies.
Since the release time is effectively multiplied by the hold time, very long total gain
recovery times can also be obtained by using the release control in conjunction with the
hold control.
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