Re: [music-dsp] Approaches to multiple band EQ

2011-01-11 Thread Tom Wiltshire
I'd approach this from a analogue-thinking angle and design a tunable parametric EQ stage and then parallel a load of them up, like Robert suggested. For the EQ, I'd start by looking at a digital 12dB/oct SVF design, like the Chamberlin filter. This allows you to tweak resonance independently

Re: [music-dsp] Approaches to multiple band EQ

2011-01-11 Thread robert bristow-johnson
On Jan 11, 2011, at 7:01 PM, Tom Wiltshire wrote: I'd approach this from a analogue-thinking angle and design a tunable parametric EQ stage and then parallel a load of them up, like Robert suggested. that's not exactly what i meant to suggest. what goes in parallel are not simply these

Re: [music-dsp] Approaches to multiple band EQ

2011-01-11 Thread Nigel Redmon
In addition to what Robert says about the lack of generality in the numerator of the Chamberlin SVF (it's an all pole filter), you can't set the Fc very high in the audio band. It's not a good choice for this application. On Jan 11, 2011, at 4:32 PM, robert bristow-johnson wrote: On Jan