-odac:plughw:0,0

----- Original Message ----- 
From: "Rory Walsh" 
To: 
Sent: Monday, December 17, 2007 4:59 PM
Subject: [Cs-dev] realtime output linux...


> I've built Csound and set the options so that it will build with portaudio
> and alsa support but when trying to run it with the following options:
>
> -+rtaudio=alsa -odac:hw:0,0
>
> I get an error saying:
>
> *** Unable to set number of channels on soundcard
> Failed to initialise real time audio output
>
> If I try only -odac:hw:0,0 I get the following:
>
> rtaudio: PortAudio module enabled ... using blocking interface
> orch compiler:
> 9 lines read
>        instr   1
> Elapsed time at end of orchestra compile: real: 0.002s, CPU: 0.000s
> sorting score ...
>        ... done
> Elapsed time at end of score sort: real: 0.002s, CPU: 0.000s
> Csound version 5.07 beta (float samples) Dec 16 2007
> graphics not supported on this terminal, ascii substituted
> 0dBFS level = 32768.0
> orch now loaded
> audio buffered in 256 sample-frame blocks
> PortAudio V19-devel
> PortAudio: using ALSA device 'hw:0,0'
> Expression 'snd_pcm_hw_params_set_channels( pcm, hwParams,
> self->numHostChannels )' failed in 'src/hostapi/alsa/pa_linux_alsa.c',
> line: 1117
> Expression 'PaAlsaStreamComponent_InitialConfigure( &self->playback,
> outParams, self->primeBuffers, hwParamsPlayback, &realSr )' failed in
> 'src/hostapi/alsa/pa_linux_alsa.c', line: 1662
> Expression 'PaAlsaStream_Configure( stream, inputParameters,
> outputParameters, sampleRate, framesPerBuffer, &inputLatency,
> &outputLatency, &hostBufferSizeMode )' failed in
> 'src/hostapi/alsa/pa_linux_alsa.c', line: 1783
> *** PortAudio: error: -9998: Invalid number of channels
> Failed to initialise real time audio output
>
> Sorry about all these questions, I have had to reinstall linux after
> windows corrupted my last one so I have to go through all these steps once
> more time...
>
>
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