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<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -odac ;;;realtime audio out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o pvsftr.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 gifil ftgen 0, 0, 0, -1, "fox.wav", 0, 0, 1 instr 1 ifftsize = 1024 ;fft size ioverlap = 256 ;overlap knewamp = 0 ;new value for amplitudes ;create fsig stream from function table fsrc pvstanal 1, 1, 1, gifil, 0, 0, 0, ifftsize, ioverlap, 0 ifn ftgen 0, 0, ifftsize/2, 2, 0 ;create empty function table kflag pvsftw fsrc,ifn ;export amps to table ;overwrite the first 10 bins each time the table has been filled new if kflag == 1 then kndx = 0 kmaxbin = p4 loop: tablew knewamp, kndx, ifn loop_le kndx, 1, kmaxbin, loop endif pvsftr fsrc,ifn ;read modified data back to fsrc aout pvsynth fsrc ;and resynth outs aout, aout endin </CsInstruments> <CsScore> ; maxbins i 1 0 4 10 i 1 4 4 100 e </CsScore> </CsoundSynthesizer>