[AudioI] Difficuly getting OCTO to work with PureData (Ryan Stanley)

[Marc Lavallée]

Hi Ryan,

My experience: it's better to use a realtime kernel or a newer version 
of the kernel that support realtime scheduling (I had some success with 
kernel 6.0) , even more on small computers (like the RPI). Also, 
PureData is not the best software for low-latency audio (Supercollider, 
for example, is much faster). Configuring Linux for audio is tricky; you 
may try using this script to guide you: 
https://codeberg.org/rtcqs/rtcqs. Or you can use a RPI OS already 
configured for audio like https://blokas.io/patchbox-os/ ; I personally 
don't have experience with a pre-configured OS for audio, because I 
prefer to configure the OS myself.

I hope it helps, and good luck!

Marc

Le 2023-06-05 à 15 h 59, Ryan Stanley via People a écrit :
> Does anyone have any advice on this? I still am unable to get OCTO to 
> work with PureData. Has anyone else had luck with it?
>
> Thanks,
> Ryan Stanley
> 904-806-8104
>
>
> On Fri, Jun 2, 2023 at 8:06 AM 
> <people-request at lists.audioinjector.net> wrote:
>
>
>     Today's Topics:
>
>        1. Difficuly getting OCTO to work with PureData (Ryan Stanley)
>
>
>     ----------------------------------------------------------------------
>
>     Message: 1
>     Date: Thu, 1 Jun 2023 13:52:33 -0400
>     From: Ryan Stanley <ryan7585 at gmail.com>
>     To: people at lists.audioinjector.net
>     Subject: [AudioI] Difficuly getting OCTO to work with PureData
>     Message-ID:
>            
>     <CAJ6-2+nExxZdgXSGTxSo9U6fyQq-ugLyY9GRYYOdTJ+Mgdbupw at mail.gmail.com
>     <mailto:CAJ6-2%2BnExxZdgXSGTxSo9U6fyQq-ugLyY9GRYYOdTJ%2BMgdbupw at mail.gmail.com>>
>     Content-Type: text/plain; charset="utf-8"
>
>     Hello everyone. I was able to get the OCTO card working (in some
>     ways) on
>     my Raspberry Pi 4B after reverting to Raspbian Buster (version from
>     2/5/2020), and following the manual installation instructions
>     except for
>     the part where you update the Linux Kernel. However it still is having
>     trouble with PureData. When I send an input to an output, the
>     audio passes
>     through un-distorted... But when I insert any objects into the
>     signal chain
>     (even just a [*~ 0.5] volume reduction), everything gets garbled,
>     almost
>     like a bitcrush style distortion. It almost seems like what passes
>     thru is
>     some sort of weird multiplexed version of the audio or something.
>
>     Does anyone know what might be wrong?
>
>     Thanks,
>     Ryan Stanley
>     904-806-8104
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