[L2Ork-dev] issues on rasbian 9/10

[Albert Graef]

Hi Marten,

I have exactly the same issue on my Raspberry Pi4. Purr works mostly fine
even with a cheap USB audio dongle, but not with the built-in soundcard of
the Pi. Pd 0.49.0 straight from the Buster repo works fine. So clearly
there's a bug lurking in our ALSA support somewhere or we're missing some
bit in the backend which makes this work in vanilla.

This was discussed on the ml before, and IIRC we've blamed it all on the
poor dsp of the Pi. ;-) But this can't be true if it works just fine in
vanilla. So we should try again to track this down. It would help if you
could submit a bug report at
https://git.purrdata.net/jwilkes/purr-data/-/issues, then I'll look into it
asap.

Thanks,
Albert


On Thu, Apr 8, 2021 at 4:58 PM Marten Seedorf <marten.seedorf at mailbox.org>
wrote:

> Hey everyone,
>
> working on a sound installation with purr-data on the raspberry pi I
> encountered some issues that might be worth mentioning.
>
> I installed the recent rasperry pi os (~ raspbian 10 buster) on a
> raspberry pi 3B and installed purr-data from Albert Gräfs repositories on
> opensuse.org. The installation went smoothly, but the audio engine (alsa)
> didn't work. All I got was a high pitched, distorted noise. I tried to use
> jack, but strangely it wasn't able to communicate with the audio hardware
> via alsa as well. So it seems that the issue is rather in the OS than in
> Purr Data. But: PD Vanilla is working perfectly fine (directly with alsa,
> without jack).
>
> I went back to Raspbian 9 Stretch and installed Purr-Data from the latest
> pre-build deb.-package I could find (2.10.1). That worked great.
>
> I became curious and installed Purr-Data on stretch from the
> opensuse-repositories (Raspbian 9) and encountered the same issues as in
> buster.
>
> So in the end, I found a solution that works for me. Still I figure there
> could be something wrong with the repositories.
>
> Best,
> Marten
> _______________________________________________
> L2Ork-dev mailing list
> L2Ork-dev at disis.music.vt.edu
> https://disis.music.vt.edu/listinfo/l2ork-dev



-- 
Dr. Albert Gr"af
Computer Music Research Group, JGU Mainz, Germany
Email: aggraef at gmail.com, web: https://agraef.github.io/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://disis.music.vt.edu/pipermail/l2ork-dev/attachments/20210409/86c7aa59/attachment.html>