IIR cascaded with pseudo-inverse IIR, is phase also restored? - diyAudio
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Old 10th November 2013, 12:46 PM   #1
OllBoll is offline OllBoll  Sweden
diyAudio Member
Join Date: Nov 2010
Default IIR cascaded with pseudo-inverse IIR, is phase also restored?

Hello there,

I'm considering using cascaded DSP where I in the first unit apply a rising +18 dB in between 20 and ~ 80 hz to simulate an OB. This unit (MiniSHARC) also has a compressor which combined with the 18 dB slope should if I understand correctly be able to limit at xmax.

The second unit will probably reduce low end gain somewhat, thus in the frequency domain inversing the slope done by the first dsp and fit for the actual driver and enclosure and my question is this:

How is phase affected by doing this? Will the phase response only be dependant on the end result after EQ or will doing this distort the phase more than if I only used filters to fix the actual response?
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