[Csnd] Rendering a multichannel file from multiple instances of one instrument

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1

hello everybody!

i try to find a quick solution for rendering a multichannel file, from a instrument that produces a mono signal, but is called in a loop an gets an index from the channel count.

here is a dummy code

instr ctrl_instr
  iCnt init 0
  while (iCnt < 21) do
    event_i(„i“, „signal“, 0, 1, iChannel)
    iCnt += 1
    iChannel += 1
  od
endin

instr signal
  aSig poscil 0.5, 440
  outch p4, aSig
endin

is there an elegant and quick solution for this?

greetings,
philipp

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2

ok, thats weird. i reduced my code to a minimal example and it stillt not works like i suggested. i run csound in emacs and it runs forever when i try to render this.
is there something wrong?

<CsoundSynthesizer>
<CsOptions>
-d -odac -3 -W
</CsOptions>
<CsInstruments>

sr = 48000
ksmps = 16
nchnls = 21
0dbfs = 1.0

schedule("ctrl", 0.1, 1)
instr ctrl
  iCnt init 0
  iChn init 0
  while (iCnt < nchnls) do
  event_i("i", "sig", 0, 5, iChn+1)
  iChn += 1
  iCnt += 1
  od
  turnoff
endin

instr sig
  iOutChn = p4
  aSig poscil 0.5, random:i(80, 800)
  outch iOutChn, aSig
endin

</CsInstruments>
<CsScore>
</CsScore>
</CsoundSynthesizer>

3

Hi Philipp,
maybe you are looking for the fout opcode, as Tarmo mentioned?
Best,
Luís

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4

Thanks all!

The problem was, Csound was running forever, because of a missing end of score statement!

Greetings,
Philipp