Digital X Bus

Dynamics (Ctrl+5)

This opens the Dynamics window for the selected channel, which contains controls for the Compressor and Gate.

ON Button

•The compressor and gate each have an On/Off button, located at the top of their respective dis- plays. It works as a bypass switch, so you can easily make an A/B comparison of the sound with and without compressor and gate.

Memory A/B

•Each memory stores the most recent settings made for the selected channel.

•Click either of these buttons to instantly recall the stored settings.

•Ideal for making quick A/B comparisons be- tween settings.

MENU

•Click the MENU button to Cut, Copy, and Paste the compressor and gate settings to and from the clipboard.

•Select Reset to return all the compressor or gate controls to their default settings.

•Select Comp Presets or Gate Presets to open the Presets window. Here you can save or load preset compressor or gate settings from the presets directory.

Compressor

A compressor is used to reduce or limit transient peaks in a signal. As the input level to the compressor increases, the output level increases linearly until the threshold point is reached. After that point, the output level no longer increases linearly. Instead, it increases at a reduced rate determined by the ratio setting.

The compressor is represented graphically by a diagonal line across an X-Y coordinate display. The horizontal axis represents the input signal level to the compressor, and the vertical axis represents the output signal level from the compressor. When the compressor is not acting upon the signal (below the threshold), the input equals the output and the line moves diagonally across the display. When the compressor begins acting on the signal, the output no longer follows the input signal, but is reduced by an amount determined by the Ratio control. The greater the ratio setting, the less the output level changes as a function of the input level.

There are five controls for the compressor along the bottom edge of the window. These are controlled by the V-Pots located just below them.

Threshold

•Determines the level at which the compressor

begins to act on the incoming signal. It is cali- brated in decibels, ranging from off (–∞) to 0 dB.

Attack

•Determines how fast the compressor reacts once the threshold has been exceeded. It is calibrated in milliseconds, ranging from 1 ms to 100 ms (1/10 second).

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