Parameters
• Threshold When a channel’s signal level exceeds the Threshold, the signal’s gain
is reduced (i.e. compressed) by an amount determined by the Ratio.
When the signal is below Threshold the gain is returned to unity (i.e. no
gain reduction is applied). The DX1208 Input Compressor uses a soft-
knee transfer curve to reduce the ‘pumping’ sound often heard with
hard-knee compression. With soft-knee compression gain reduction
actually begins 3 dB below the Threshold. The figure below illustrates
the difference between a hard-knee curve (solid line) and a soft-knee
curve with a Ratio of [20:1].
Inputs 9/10 and 11/12 employ true stereo compression: the energy sum
of both the left and right inputs is applied to the threshold detector, and
gain reduction is applied equally to both channels.
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