[PlanetCCRMA] Re: [PD] Audio I/O stuck with both ALSA and Jack

Nuno Ferreira haptic_if@sapo.pt
Fri Jan 30 18:12:00 2004

Hash: SHA1

Fernando Pablo Lopez-Lezcano wrote:
|>|         I am still trying to use PD with the HDSP 9632 audio card in
|>linux.  Everytime I started PD with the card in linux it would not open.
|>I kept getting an audio I/O stuck message when trying to start PD in
|>linux. As suggested I tried it with ALSA and jack with the commands:
|>| pd -alsa
|>| pd-jack
|>| The error read as follows: using non-interleaved audio input
|>| Sample width set to 4 bytes
|>| ALSA: set input channels to 4
|>| snd_pcm_hw_params_set_access (output): Invalid argument
|>| using non-interleaved audio
|>| alsa: set output channels to 4
|>| audio I/O stuck... closing audio
|>I've got a similar error also with a kernel 2.6, posted a few days ago
|>but no one here was able to help... let's see how we do this time.
|>My error was a little different though, my audio I/O doesn't become
|>because I don't get that far, your pd seems to decide he should use
|>*non-interleaved audio*,
| That is because the RME card only works in non-interleaved mode.

Well, that's something  didn't know. So a newbie question comes to mind
now: how  can I tell ALSA and/or PD to use my card in non-interleaved
mode? maybe something in .asoundrc? I'll try to check that...

|>mine asserts he cannot continue due to not
|>being able to use *interleaved audio*. Here's my output
|>$ pd -alsa -nogui
|>snd_pcm_hw_params_set_access (input): Invalid argument
|>Sample width set to 2 bytes
|>pd: pcm.c:1101: snd_pcm_readi: Assertion `pcm->access ==
|>Pd: signal 6
| That looks like a bug in alsa itself for your particular soundcard...
| or for the way that pd is trying to access it. What hardware do you
| have? Are you using the alsa kernel modules that come with 2.6.1? Those
| are a little out of date (I think)...

I have a es1968 (Maestro 2E). Debian testing/unstable with 2.6.0-test11
and userspace ALSA 0.9.8 (alsa-base is 1.0.1)
| -- Fernando

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