User Manual

+DSP
277
Master Bypass {On, Off}
Puts the mixer into direct route mode (e.g. all inputs are directly routed to the corresponding
outputs, and no mixing occurs).
MIOComp
• Synopsis: Flexible Signal Dynamics Compressor
• Category: Dynamics, Mastering
• Channels: 1, 2
Description:
MIOComp is a flexible, full featured dynamics processor that provides compression/limiting function-
ality.
The compressor provides a flexible detector that can be driven from the input signal or a sidechain
input. The detector computes the input level of the source signal, using the user specified Attack
and Release times to control the responsiveness of gain cell of the compressor.
When the detected level is below the Threshold, the gain cell passes the signal with no change.
Conversely, when the detected level is above the Threshold, the signal is attenuated based upon
the Ratio, Knee and the level of the signal above the Threshold.
When the Knee is set to 0, MIOComp acts a hard-threshold compressor. For every dB (x) the signal is
above the Threshold, the output signal increase above Threshold by x ÷ Ratio.
When the Knee is set to a value above 0, the knee will be softened, and the effective Ratio will
increase gradually from 1 to the specified Ratio. The transition is made more gradual as the Knee
is increased from 0 to 1.
After the compressor gain-reduction has been applied to the signal, an additional make-up gain block
applies a user specified Makeup Gain to the signal. If the Auto Gain has been enabled, the user
specified Makeup Gain is applied in addition to the compressor computed make-up gain.
After the make-up gain has been applied, the output signal is limited to level specified by the Out
Ceiling. This output ceiling limiter captures the effects of fast-transient breakthrough and is espe-
cially useful when using MIOComp on highly impulsive signals with large compression ratios.
Parameters:
Enable {Off, On}
Enables the compressor.
Threshold [-100, 0] dB
Sets the threshold at which the compressor begins to act. There will be no gain reduction applied
by the compressor when the input signal is below this threshold.
Ratio [1, 100k]
The gain reduction ratio that is applied to the input signal when the signal is above threshold. The
actual ratio applied also depends on the knee parameter which can be used to soften the knee
and make the applied ratio progressive.
Attack [1µ, 500µ] s
The characteristic attack time of the application of the gain reduction. Longer attack times will
cause MIOComp to be less responsive to short transients. Short attack times are required to use
MIOComp as a signal limiter, but very short attack times can lead to distortion in the output signal.
The attack time is applied in the detector stage of MIOComp.