12.25

MASTER BUS COMPRESSOR1249
Compression controls
Compressors reduce the dynamic range by evening out the difference between loud and quiet signals. This makes
signal levels easier to balance, and can add punch and sustain to the sound, as well as “glue” together a final mix.
The parameters are as follows:
Input Gain
D Adjust the input gain to the Master Bus Compressor.
Range: +/- 18.00 dB
Threshold
D Set the level at which onset of compression should occur.
The lower the Threshold, the more compression is applied.
Range: -30 dB to 0 dB
Ratio
Ratio specifies the amount of gain reduction applied to signal levels above the set Threshold. A 2:1 compression ratio
effectively means that a signal level 2dB above threshold will have a signal gain of 1dB.
D Set the amount of gain reduction applied to the signal above the set Threshold.
Range: 2:1, 4:1 and 10:1
Attack
D Set the time it should take before the compressor should react to signals above the set Threshold.
Range: 0.1 ms, 0.3 ms, 1 ms, 3 ms, 10 ms and 30 ms.
Release
D Set the time it should take before the compressor lets the sound through unaffected - after the signal level
drops below the set Threshold.
If set to “Auto”, the Release time will be program adaptive, so the Release time is automatically increased following
long peaks and decreased following short peaks.
Range: 0.1 s, 0.3 s, 0.6 s, 1.2 s and “Auto”.
Make Up
Make-Up gain compensates for level reduction caused by compression and helps maintain a steady output level.
D Adjust the output gain from the Master Bus Compressor device.
Range: - 5 dB to + 15.00 dB
Compressor Gain Reduction Meter
The meter shows the gain reduction amount in dB applied by the compressor.