pvsinit — Initialise a spectral (f) variable to zero.
fsig -- output pv stream set to zero.
isize -- size of the DFT frame.
iolap -- size of the analysis overlap, defaults to isize/4.
iwinsize -- size of the analysis window, defaults to isize.
iwintype -- type of analysis window, defaults to 1, Hanning.
iformat -- pvsdata format, defaults to 0:PVS_AMP_FREQ.
Here is an example of the pvsinit opcode. It uses the file pvsinit.csd.
Example 847. Example of the pvsinit opcode.
See the sections Real-time Audio and Command Line Flags for more information on using command line flags.
<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 pvsinit.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; by Victor Lazzarini sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 gfsig pvsinit 1024,256,1024,1 instr 1 a1 diskin p4 fs1 pvsanal a1,1024,256,1024,1 gfsig pvsmix fs1,gfsig endin instr 2 a1 pvsynth gfsig outs a1, a1 ; clear fsig gfsig pvsgain gfsig,0 endin </CsInstruments> <CsScore> i1 0 4 "fox.wav" i1 0 4 "drumsMlp.wav" i2 0 4 </CsScore> </CsoundSynthesizer>