Roland SH-4d - Compressor; M;S Comp (Mid-Side Compressor)

MFX Parameters
127
Comp / Limiter
Compressor
Flattens out high levels and boosts low levels, smoothing out fluctuations in volume.
Parameter
Value
Explanation
Attack
0–124
Sets the speed at which compression starts
Release
0–124
Adjusts the time after the signal volume falls below the Threshold Level until compression is
no longer applied.
Threshold
-60–0 [dB]
Adjusts the volume at which compression begins
Knee
0–30 [dB]
This is a function that smooths the onset of compression from the uncompressed state; it
gradually applies compression starting earlier than Threshold.
Higher values produce a smoother transition.
Ratio
1: 1, 1.5: 1, 2: 1, 4: 1,
16: 1, INF: 1
Compression ratio
Post Gain
0–+18 [dB]
Level of the output sound
Level
0–127
Output Level
M/S Comp (Mid-Side Compressor)
This effect allows the left/right signals that have similar phase to be adjusted to a different sense of volume than the left/right
signals that have different phase.
Parameter
Value
Explanation
M Comp
Sw
OFF, ON
Switches whether to adjust the sense of volume for left/right input signals whose phase is
similar (in phase).
M Attack
0–124
Sets the speed at which compression starts
M Release
0–124
Adjusts the time after the signal volume falls below the M Thres Level until compression is no
longer applied.
M Thres
-60–0 [dB]
Adjusts the volume at which compression begins
M Knee
0–30 [dB]
This is a function that smooths the onset of compression from the uncompressed state; it
gradually applies compression starting earlier than M Thres.
Higher values produce a smoother transition.
M Ratio
1: 1, 1.5: 1, 2: 1, 4: 1,
16: 1, INF: 1
Compression ratio
M Gain
0–+18 [dB]
Level of the output sound
S Comp Sw
OFF, ON
Switches whether to adjust the sense of volume for left/right input signals whose phase is
distant (opposite phase).
S Attack
0–124
Sets the speed at which compression starts