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<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -odac ;;;realtime audio out -iadc ;;;uncomment -iadc if real audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o pconvolve.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; additions by Menno Knevel 2022 ; sr = 44100 ; ksmps = 32 ; nchnls = 2 ; nchnls_i = 1 ; assume only one mono signal for audio input! 0dbfs = 1 instr 1 kmix = .5 ; Wet/dry mix kvol = .05*kmix ; volume level of reverb kmix = (kmix < 0 || kmix > 1 ? .5 : kmix) ; do some safety checking kvol = (kvol < 0 ? 0 : .5*kvol*kmix) ; to make sure we the parameters a good ipartitionsize = p4 ; size of each convolution partion ; for best performance, this parameter needs to be tweaked idel = (ksmps < ipartitionsize ? ipartitionsize + ksmps : ipartitionsize)/sr ; calculate latency prints "\nConvolving with a latency of %f seconds\n", idel prints "***if no live input is given, nothing will sound...***\n\n" alive in ; get live input (mono) awetl, awetr pconvolve kvol* (alive), "drumsSlp.wav", ipartitionsize adryl delay (1-kmix)*alive, idel ; delay dry signal, to align it with the convoled sig adryr delay (1-kmix)*alive, idel outs adryl+awetl, adryr+awetr endin instr 2 imix = 0.5 ; Wet/dry mix ivol = .05*imix ; volume level of reverb when wet/dry mix is changed, to avoid clipping ipartitionsize = 1024 ; size of each convolution partion idel = (ksmps < ipartitionsize ? ipartitionsize + ksmps : ipartitionsize)/sr ; latency of pconvolve opcode kcount init idel*kr ; since we are using a soundin [instead of in] we can do a kind of "look ahead" ; without output, creating zero-latency by looping during one k-pass loop: asig soundin p4, 0 awetl, awetr pconvolve ivol*(asig),"rv_stereo.wav", ipartitionsize adry delay (1-imix)*asig,idel ; Delay dry signal, to align it with kcount = kcount - 1 if kcount > 0 kgoto loop outs awetl+adry, awetr+adry endin </CsInstruments> <CsScore> i 1 0 20 1024 ;play live for 20 seconds i 2 20 5 "fox.wav" i 2 25 5 "flute.aiff" e </CsScore> </CsoundSynthesizer>