Following our brief discussion and confusion yesterday evening about the difference between multiband compression and dynamic EQ, I've tracked down this well-written couple of paragraphs from Paul White, as part of his review of the SOnnox oxford Dynamic EQ:
"The difference between a multiband compressor and a dynamic equaliser is subtle and sometimes misunderstood. Their roles do overlap to some degree, and both work by splitting the signal into multiple frequency bands, but they aren’t identical. Multiband compressors use crossovers with a slope that is usually fixed, even if the crossover frequency is variable, and process each of the resulting frequency bands separately before recombining them, whereas a dynamic EQ applies the gain change directly to the gain parameters of a multiband parametric equaliser.
Both designs have their pros and cons. The crossovers used in a multiband compressor can introduce unwanted and audible phase shifts, and a parametric EQ is more ‘tuneable’ than a simple band-splitting system; if necessary, EQ bands can also be made to overlap. A multiband dynamics processor also differs from typical dynamic equalisers in that as the amount of boost or cut increases, the bandwidth remains constant. By contrast, many equalisers exhibit ‘proportional Q’ response, where the bandwidth narrows with increasing gain or attenuation, and this can often sound more natural."
We were essentially correct during our discussions, but the above is a far clearer explanation
Review here if you want to read more: https://www.soundonsound.com/reviews/so ... dynamic-eq
Martin