User Manual

18
4 UC Surface Monitor Control Software
4.3 Dynamics Processing and EQ
Studio 192
Owner’s Manual
8. Gate Graph. This graph shows the point at which the gate
threshold affects the signal. You can either use this graph to adjust
the threshold or the dedicated threshold control (#2).
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1. Compressor On/Off. Turns the compressor on and
off for the selected analog input channel.
2. 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.
3. 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 14:1.
4. 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.
5. Compressor Attack. Sets the compressor attack for the selected channel. Attack
sets the speed at which the compressor acts on the input signal. A slow attack
time (fully clockwise) allows the beginning component of a signal (commonly
referred to as the initial transient) to pass through, uncompressed, whereas a fast
attack time (fully counterclockwise) triggers compression immediately when a
signal exceeds the threshold. You can set the attack from 0.2 to 150 milliseconds.
6. Compressor Release. Sets the compressor release for the selected channel
or output bus. This sets the length of time the compressor takes to return
the gain reduction back to zero (no gain reduction) after crossing below the
compression threshold. Release can be set from 40 to 1,000 milliseconds.
Power User Tip: Very short release times can produce a choppy or “jittery” sound,
especially when compressing instruments that have a lot of low-frequency
components, such as bass guitar. Very long release times can result in an
overcompressed, or “squashed,” sound. All ranges of release can be useful, however,
and you should experiment to become familiar with different sonic possibilities.
7. 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.