PlaySpectrum_filt Run an FFT on soundfile playback, and plot the spectrum in dB. Includes a stage of filtering with a directly-implemented 2 pole IIR filter. Mouse x controls center frequency, y controls bandwidth (Q). Bandpass filter is implemented explicitly instead of using the minim bpf class "for educational purposes". Based on http://processing.org/learning/libraries/forwardfft.html by ddf, and copies the idea of http://processing.org/learning/libraries/bandpassfilter.html by ddf. 2010-02-03 Dan Ellis dpwe@ee.columbia.edu

Source code: PlaySpectrum_filt

Built with Processing