Here is an idea

=== preparation ===

  1) write the number `1' on the first line of the text file "version.txt"

  2) copy the initial soundfile in snd_1.wav

=== csound file ===

(session 1 base snd_1.wav output snd_2.wav)
(session 2 base snd_2.wav output snd_3.wav)
...

you can overwrite a take manually changing the number in "version.txt"

<CsoundSynthesizer>
<CsOptions>
-odac
</CsOptions>
<CsInstruments>
sr     = 44100
ksmps  = 64
nchnls = 2

opcode get_version,i,0
  ;; read the version number
  ifile fiopen "version.txt", 1
  fini ifile, 0, 0, iversion
  ficlose ifile
  ;; update the version
  ifile fiopen "version.txt", 0
  fouti ifile, 0, 0, iversion + 1
  ficlose ifile
  xout iversion
endop

instr 1
iversion get_version
;; get the names of the in/out soundfiles
Sinfile  sprintf "snd_%d.wav", iversion
Soutfile sprintf "snd_%d.wav", iversion + 1

;; read the input (soundin, fin, etc..)
al, ar soundin Sinfile
;; fin Sinfile, 0, 0, al, ar

;; your music project or zak, mixer, etc..
;; ...
;; ...

;; record the new take
fout Soutfile, 0, aout1, aout2
;; monitor
outs aout1, aout2
endin
</CsInstruments>

<CsScore>
i1 0 1800
</CsScore>
</CsoundSynthesizer>

tito

On Tue, Dec 13, 2011 at 12:19:01PM -0800, zappfinger wrote:
> Hi all,
> 
> Is it possible to do this? I.e. make a simple multitracker by playing a
> sound file (using fout) and do realtime input, save this combined data to a
> file and use this file as input for a next session, ad infinitum?
> 
> Richard


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