Interesting idea, but the idea of having csound ship the data out-of-process  
and then importing it back in order to write it to disk seems a bit 
longwinded (and slow)

But thank you for the idea, I may yet proceed along similar lines.

On Thursday 03 April 2008 17:17, DavidW wrote:
> hi Lilith,
> Have you looked at using PyAudio?
>
> http://people.csail.mit.edu/hubert/pyaudio/docs/
>
> D.
>
> On 03/04/2008, at 2:10 PM, Lilith Bryant wrote:
> > I wonder if I could tap the list here for some advice.
> >
> > I'm writing a score writer front-end in python using the csound API.
> >
> > The big idea with this project, is to be able to quickly change the
> > score and
> > re-render with having csound reload the whole orchestra/csd file for
> > every
> > simple score change.  So i'm simply calling the csoundCompile and
> > all the
> > prequisites once at the beginning of my application (or whenever the
> > user
> > asks to reload the orchestra/csd)
> >
> > Then for each renderering, I call csoundScoreRewind and then
> > csoundScoreEvent
> > for each note.
> >
> > Which works as expected, except the output wav file simply grows
> > with easy
> > pass.  i.e. it  csoundScoreRewind doesn't clear it, like would be
> > useful for
> > this case.
> >
> > Now I can alternatively not use wav file output at all, and use
> > csoundSetHostImplementedAudioIO and manually fish out the samples,
> > and write
> > them to a wav file myself.  But this is python and that hideously
> > slow.
> >
> > So the questions are:
> > 1) Is there a way to restart the wav file output without reloading the
> > orchestra/csd?
> >
> > OR
> >
> > 2) Is there a quick way to fish out the output buffer samples into a
> > python
> > string or array, for writing out to file using the python wav module?
> >
> > The best i have so far is something like:
> >
> > ob=csnd.csoundGetOutputBuffer(self.cs)
> > fa=csnd.floatArray.frompointer(ob)
> > sa=array.Array('h',[0]*buffersize*2)
> > for n in range(buffersize*2):
> > 	sa[n]=fa[n]*32767
> > wavdata=sa.tostring()
> >
> > which really SUCKS performance-wise (not surprisingly).
> >
> > I don't want to write a C/SWIG function to do just this, since i
> > want to be
> > able to give this to people who aren't up to running compilers.
>
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