Stereo and Mono Sidechain Compressors for Tracktion

Reduction Meter

Input and Output OL LEDs

The small boxes at the right of the input and output meters are the overload LEDs. They light if the signal goes above 0 dB, and this should be avoided. Most little red lights which come on should be avoided, like that one in the car which says "Oil."

You can generally get rid of clipping by backing off the makeup gain slider slightly, or by engaging the Soft Clip switch (see the previous page).

The reduction meter along the right edge of the screen shows the overall reduction in output level due to the compressor operation. If you are using expansion, then there will be an increase in output level. This meter will help you add or adjust the makeup gain.

The meter reads 0 dB whenever the input is below threshold, and moves down as the input level goes above threshold and gain reduction starts.

Input and Output Meters

The meters below the graph show the input levels of the signals going into the compressor and the left and right output levels.

The stereo compressor takes its input from a mixed sample of the left and right, so there is only one input meter. Its compressor action then works equally on the left and right of your stereo track.

It is interesting to see the position of the threshold with respect to the input level meter, and to see the output meters. Some say they are almost hypnotic, and you can even predict Lotto numbers.

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User’s Guide