Multi band processing - internal latency
Posted: Sun Apr 15, 2018 12:06 pm
I'm thinking of a MB processor which runs a different process for each spectral band. It is a generic question, but as an example, let's suppose it is a:
3 band multi-band processor
Low band (under say 100 Hz) receives no processing
Medium band (say 100-4 KHz) receives stereo expansion with delay
High band (say 4 -20 KHz) receives a compressor + gain boost + some FIR filter with known latency
How can I make sure that the three bands are in ideal time alignment and avoid 'smearing' and 'frequency cancelation' of specific frequencies within the bands ?
Should I test this by impulse response? Phase response?
Other ideas/suggestions ?
What are the correction measures, simple delays per specific 'early' bands ?
3 band multi-band processor
Low band (under say 100 Hz) receives no processing
Medium band (say 100-4 KHz) receives stereo expansion with delay
High band (say 4 -20 KHz) receives a compressor + gain boost + some FIR filter with known latency
How can I make sure that the three bands are in ideal time alignment and avoid 'smearing' and 'frequency cancelation' of specific frequencies within the bands ?
Should I test this by impulse response? Phase response?
Other ideas/suggestions ?
What are the correction measures, simple delays per specific 'early' bands ?