[PlanetCCRMA] Realtime audio using csound

Kevin Ernste kevine@esm.rochester.edu
Tue Jan 18 08:26:14 2005


Hi Andres -

I use "devaudio" here.  This may be outdated as it's part of a very
old "csoundplay" script I have, but it works, something like this:

csound  -o devaudio  -W -d $ORCH $SCORE

Kevin

On Tue, 18 Jan 2005 06:59:01 -0500, Andres Cabrera
<andres@geminiflux.com> wrote:
> Hi all,
> I'm trying to use csound with realtime output, but I always get the message:
> Csound Version 4.23f03 (Nov 18 2003)
> 0dBFS level = 32767.0
> orch now loaded
> audio buffered in 441 sample-frame blocks
> unable to open soundcard for audio output
> 
> I'm using the following flags:
> -odac -B441 -b441 temp.orc temp.sco
> 
> instead of -odac I've also tried -odac0 through  -odac6 with the same
> result.
> All my sound cards work fine in all other applications.
> 
> Some info:
> $ cat /proc/asound/cards
> 0 [M2x2           ]: USB-Audio - MidiSport 2x2
>                      M-Audio MidiSport 2x2 at usb-00:1d.0-1, full speed
> 1 [Mona           ]: Echoaudio Mona - Mona
>                      Mona rev.2 (DSP56361) at 0x20800000 irq 11
> 3 [VirMIDI        ]: VirMIDI - VirMIDI
>                      Virtual MIDI Card 1
> 
> The only strange thing I've done is I've installed alsa-driver-1.0.7,
> built from source, to be able to use the Mona soundcard.
> 
> Does anyone know what csound does differently from other programs when
> accessing the sound system?
> 
> Thanks,
> Andrés
> 
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