[not a bug] Multiband Compressor Mix parameter

I'm trying now and with the mix set to 100% it sounds fine, at 0% it sounds the same as when the block is bypassed but around 50% it sounds phasey - is this what you're experiencing?
 
2112 said:
I'm trying now and with the mix set to 100% it sounds fine, at 0% it sounds the same as when the block is bypassed but around 50% it sounds phasey - is this what you're experiencing?
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Yes, exactly, it sounds as expected at 0% and 100% but the transition at 50% sounds phasey.
 
FractalAudio said:
This is the reason I don't like Mix controls on things like this but someone asked for it... It's inevitable that it will cause phasiness because the crossovers cause phase shift.
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Thanks for the info. I don't know if you've ever used FabFilter's multiband compressor plugin, but if so, any idea how they managed to get around the issue?
 
Jason Scott said:
Thanks for the info. I don't know if you've ever used FabFilter's multiband compressor plugin, but if so, any idea how they managed to get around the issue?
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Since plug-ins/DAWs aren't having to process audio in real-time, I would imagine that they are applying a micro-delay to the dry signal to keep it in phase with the processed signal.??
 
Jason Scott said:
Thanks for the info. I don't know if you've ever used FabFilter's multiband compressor plugin, but if so, any idea how they managed to get around the issue?
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Probably using FIR filters. IIR filters will inherently have phase shift.

TBH I don't understand why anyone would ever use a mix control on a multiband compressor...
 
FractalAudio said:
Probably using FIR filters. IIR filters will inherently have phase shift.

TBH I don't understand why anyone would ever use a mix control on a multiband compressor...
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Rather than adjusting 3 individual bands, you can control the overall level of the mix with a single parameter.
 
I don‘t understand it either, but did you try to split the signal, use the MBC with one part (mix=100%) and combine it afterwards with the uncompressed part?
 
Moke said:
Since plug-ins/DAWs aren't having to process audio in real-time, I would imagine that they are applying a micro-delay to the dry signal to keep it in phase with the processed signal.??
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With the buffer set moderately low, you can monitor the processed audio with low latency which, while not real-time, is sufficient for listening to the output while playing/recording, for some people anyway. For me, that's fine if the plugin is the last effect in the chain (ie. placed after the blocks in Axe-Edit), but if I need it between a block on the Axe-Edit grid, that presents another challenge.
 
FractalAudio said:
Probably using FIR filters. IIR filters will inherently have phase shift.

TBH I don't understand why anyone would ever use a mix control on a multiband compressor...
Click to expand...
Yes FabFilter use linear phase filters or what the call Natural phase filters (which I believe is somehow a happy medium between linear and minimum phase filters).
I really think it could be great to have a dynamic EQ in the box - even just a single band. It greatly reduces the phase issues inherent with multiband comps. And at least for my uses of MBC, I only use one band anyway. I think the Tokyo Dawn Records Nova is a very elegant implementation of a dynamic EQ with no latency and very small phase issues.
 
FractalAudio said:
TBH I don't understand why anyone would ever use a mix control on a multiband compressor...
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For the same reason people use a mix control on a wide-band compressor: to retain the punch/attack of the signal, but blend in a bit more sustain as well. In the case of the multiband comp, though, you can select the frequency range(s) of the sustain you bring up.
 
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