Nsound::biquad::FilterBank Work In Progress

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I’ve made some good progress on a biquad filter bank on this branch.  I’ve been able to replicate Figure 10 from this reference:


That’s a filter bank with 4 individual biquad filters, here’s the C++ code that produced the plot:

The program also produces this output:

This work is to enable a parametric equalizer application, where an audio sample can be loaded and filtered in real-time while the user adjusts the filter parameters.

I’ve been using the picojson library and it was been really easy to use.

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