[PD] Multiple audio outputs on a single-board computer ?

[Pierre Massat]

Thank you all for these great answers.

Cheers,

Pierre.

2021-03-19 21:12 UTC+01:00, Thomas Grill <gr at grrrr.org>:
> Yes, i have one of those and it works well on the Rpi, also with Pd of
> course.
> best, Thomas
>
>> Am 18.03.2021 um 10:24 schrieb Pierre Massat <pimassat at gmail.com>:
>>
>> Thank you all for your replies. I didn't even know surround soundcards
>> existed. This looks promising given my budget.
>> In the meantime I found this :
>> https://shop.audioinjector.net/detail/Sound_Cards/Octo+RCA+sound+card
>> Anybody has experience using it with Pd ?
>>
>> Cheers,
>>
>> Pierre.
>>
>> 2021-03-17 17:53 UTC+01:00, Lorenzo Sutton <lorenzofsutton at gmail.com>:
>>> On 17/03/21 07:42, Pierre Massat wrote:
>>>> Dear all,
>>>>
>>>> I haven't posted anything on this list in years.
>>>> I'm trying to build a system to play several sound files in a loop,
>>>> each around 2 minutes in length, all at the same time. By "several" I
>>>> mean 10 to 15 different files. While I'd have no problem making a Pd
>>>> patch to achieve this, I have no idea what hardware I could use. I
>>>> have a limited budget, and I was planning on running Pd on a Raspberry
>>>> Pi (or similar single-board computer).
>>>>
>>>> Is there any cheap way of outputing than many channels from a single
>>>> (a couple of) RPi ?
>>>
>>> How many are 'many' :-)
>>>
>>> If it's <= 8 channels and you don't care (too much) about latency you
>>> could check out a cheap '7.1' USB card (these can cost less than 30 euro
>>> online) and if it exposes 8 writable inputs via jack that could work.
>>> The physical outputs of these are, of course, unbalanced and in couples
>>> so you'd need to do some cable splitting and then maybe have a mixer
>>> nearby...
>>> I never did this on the RPi but I _did_ something similar with a cheap
>>> 5.1 usb sound blaster hooked to a laptop in the past.
>>> I'm assuming, of course that each file would 'consume' just 1 channel...
>>>
>>> YMMV.
>>>
>>> If you want more than 8 output channels it will be hard to stay 'cheap'
>>> (which of course depends on 'how much' is your limited budget), and then
>>> - of course - you need to check linux compatibility (i.e. if they are
>>> 'class compliant'...)
>>>
>>> My two cents,
>>>
>>> Lorenzo.
>>>
>>>
>>>
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>>
>>
>>
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>
> --
> Thomas Grill
> http://grrrr.org
>
>
>