User manual

Table Of Contents
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5 UC Surface Mix Control Software
5.2 Fat Channel Controls
StudioLive™ Software
Library Reference Manual
5.2.4 Compressor
To view the controls for the Compressor, click on the Compressor tab.
1. Compressor On/Off. Turns the Compressor On and Off for the selected channel.
2. Compressor Graph. This graph shows the point at which the
compressor threshold affects the signal. You can use this graph to
adjust the threshold or use the dedicated Threshold control (#3).
3. Compressor Response. Sets the compressor response for the
selected channel or output bus. The Response control sets the
attack and release tapers for the Compressor simultaneously.
4. Compressor Threshold. Sets the compressor threshold for the selected channel
or output bus. When the signal’s amplitude (level) exceeds the threshold
setting, the compressor engages. The threshold can be set from -56 to 0 dB.
5. Auto Mode Button. When Auto mode is active, the Attack and Release
controls become inoperative, and a preprogrammed attack and release
curve is used. In this mode, the attack is set to 10 ms, and the release is set to
150 ms. All other compressor parameters can still be adjusted manually.
6. Ratio. Sets the compression ratio (or slope) for the selected channel or output
bus. The ratio sets the compression slope, which is a function of the output
level versus the input level. For example, if you have the ratio set to 2:1, any
signal levels above the threshold setting will be compressed at a ratio of
2:1. This means that for every 2 dB of level increase above the threshold, the
compressor’s output will only increase 1 dB. The ratio can be set from 1:1 to 14:.
7. Compressor Makeup Gain. Sets the amount of makeup gain for the selected
channel or output bus. When compressing a signal, gain reduction usually results
in an overall attenuation of level. The gain control allows you to restore this
loss in level and readjust the volume to the pre-compression level (if desired).
You can adjust Makeup Gain from 0 dB (no gain adjustment) to +28 dB.
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