[PD] How to use a DAC expansion board with the RPi4

Alexandros adrcki at gmail.com
Thu Sep 23 15:53:02 CEST 2021


I can confirm that the Pisound works great, but it's not a cheap solution.

On 23/9/21 4:34 μ.μ., Ingo wrote:
> cat /proc/asound/cards	says	--- no soundcards ---
> Pd doesn't see any soundcards.
>
> I think the problem is that the DAC get its data from the GPIO pins that Pd
> cannot communicate with.
>
> I wonder if anybody made a "virtual soundcard" that talks to the RPi GPIO
> and shows up as a ALSA device.
>
> I have a very small Sounblaster card that works fine and sounds ok but it's
> still too large to fit inside.
> With the internal headphones out my software doesn't even start up.
>
> I'm afraid that this won't even work at all with Pd . . .
> Has anyone ever used any of these RPi DACs?
>
> Ingo
>
>
>
>> -----Original Message-----
>> From: Pd-list [mailto:pd-list-bounces at lists.iem.at] On Behalf Of Peter P.
>> Sent: Thursday, September 23, 2021 2:19 PM
>> To: pd-list at lists.iem.at
>> Subject: Re: [PD] How to use a DAC expansion board with the RPi4
>>
>> * Ingo <ingo at miamiwave.com> [2021-09-23 14:04]:
>>> Hi everybody!
>>>
>>>
>>>
>>> I just got a DAC expansion board for my RPi4 but Pd doesn't see it.
>>>
>>> https://www.berrybase.de/en/new/argon-nanosound-one-case-f-252-r-
>> raspb
>>> erry-p
>>> i-4?c=2389
>>>
>>>
>>>
>>> Since there is no room for a sound card in such a small box and the
>>> RPi headphone out is no good it looks like the only compact way.
>>>
>>>
>>>
>>> Can anybody point me to instruction for making Pd use these DAC
>>> expansion boards as a sound card?
>> What do the commands
>> $ pd -listdev
>> $ $ cat /proc/asound/cards
>> tell you about available cards?
>>
>> What does the manufacturer of the expansion board tell you about it?
>> Will it be a separate sound card from the built-in one? Or will the
> expansion
>> merely provide the built-in one with more channels?
>>
>> You might want to subscribe to the linux audio users mailing list for
> assistance
>> as well.
>>
>> P
>>
>>
>>
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>
>
>
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