Sonnox Oxford SuprEsser User Manual
Page 14
3.3 Advanced Operation
3 OPERATION
Band-Band Mode
In this mode (the default) both the trigger signal (to the compressor sidechain) and the
main compressor signal is the narrow-bandpass-filtered signal.
The output of the compressor is then fed to the crossover block (the ‘Listen’ section) for
mixing back in with the version of the input signal that has been filtered with the
corresponding narrow-band-reject filter. The result is that the plug-in affects only a narrow
frequency band, triggered by that same frequency band, and does not affect the rest of
the frequency spectrum.
In this mode, when you also use the Auto Level Track function (AUTO IN), the threshold
follows the general level of the signal post the band-reject filter, (ie. everything except the
troublesome frequencies).
Band-Wide Mode
In this mode, the trigger signal (to the compressor sidechain) is the
narrow-bandpass-filtered signal, and the main compressor signal is the (wide) delayed
input signal.
This means that when the narrow band signal triggers gain ducking, the ducking occurs
over the whole frequency spectrum, as in traditional sidechain EQ compression.
This mode offers one major advantage over the equivalent mode in the Oxford Dynamics
compressor — you have a WET/DRY control on the output stage, so you can mix the
original signal back into the compressed signal.