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Show HN: Real-time bandpass filter bank audio spectogram (grz0zrg.github.io)
14 points by afgho 16 days ago | hide | past | favorite | 2 comments



Cool. The lower is original signal and upper is after band pass filter?


It show two methods which are doing the same frequency extraction job, the lower one is Web Audio analyzer node (quite common and fast, FFT based) and upper is analysis using Web audio biquad bandpass filter bank (slower but more flexible)

https://github.com/grz0zrg/WABSP2




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