I'm wondering if this is relevant to Csound...

Original Message:
-----------------
From: Benjamin Golinvaux Benjamin.Golinvaux@euresys.com
Date: Sun, 23 May 2004 14:11:56 +0200
To: catharsis@egregious.net, sc-dev@create.ucsb.edu
Subject: [sc-dev] RE: SC3 build on Win32


hi Mike
(cross-posting to sc-dev@create.ucsb.edu)

i'm still working on the SC3 Win32 build. I have created a small GUI
application
that allows to choose the audio devices (in & out) and output channels. It
should
be ready soon.

Meanwhile, have a look at the current portaudio device init code :

        env = getenv("SC_PORTAUDIO_INPUTS");
        if (env == 0) env = "2";
        mInputChannelCount = std::max(2, atoi(env));

        // create outputs according to SC_PORTAUDIO_OUTPUTS (default 2)
        env = getenv("SC_PORTAUDIO_OUTPUTS");
        if (env == 0) env = "2";
        mOutputChannelCount = std::max(2, atoi(env));

    *outNumSamples = mWorld->mBufLength;
    *outSampleRate = 44100.; ///$$$TODO fixme use the cmd-line supplied
param

    PaError paerror = Pa_OpenDefaultStream( &mStream, mInputChannelCount,
mOutputChannelCount,
            paFloat32 | paNonInterleaved, *outSampleRate, *outNumSamples,
SC_PortAudioStreamCallback, this );
    if( paerror != paNoError )
        PRINT_PORTAUDIO_ERROR( Pa_OpenDefaultStream, paerror );

    return paerror == paNoError;

This basically means that you should be able to enable multi-channel i/o
(if the build you're using uses this code, 
which i found in a recent cvs upgrade) by defining the SC_PORTAUDIO_INPUTS
and SC_PORTAUDIO_OUTPUTS
environment variables (My Computer -> Properties -> Advanced -> Environment
Variables)

Hope this helps.
 
Best,
 
Benjamin



-----Message d'origine-----
De : Catharsis [mailto:catharsis@egregious.net
 ]
Envoyé : Thursday, May 20, 2004 9:09 AM
À : Benjamin Golinvaux
Objet : RE: SC3 build on Win32

At 12:01 AM 5/20/2004, you wrote:
>ok. i also have a multichannel audio interface (rme hammerfall) so i
>can maybe focus on trying to solve the multichannel issues once the
>basic stuff works. i hope no serious portaudio issues are involved

Excellent.. I look forward to hearing about your progress.. Thanks for
working on this!

Best,
--Mike

Lead Developer, Scream: http://audio.egregious.net/scream/
 
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