

But the filtered signals are not mixed back together again: instead the gain modulation signals from all five compressors are matrixed into modulation signals for 4 dynamic shelving filters plus a gain stage.”

“5ORCERY takes a different approach: the signal is still split into five separate bands using cross-over filters, and these feed the side-chains of five separate compressors. “This approach tends to cause phase problems around the cross-over frequencies, requiring sophisticated filter designs to minimize these effects.” “The traditional way to build a multi-band compressor is to split the signal into the required number of bands using cross-over filters, then run each band- through a separate compressor before mixing them back together again.” Here’s a free multiband compressor that aims to eliminate the phase issues sometimes associated with plug-in multi-band comps.
