Music streamer + HAT for Raspberry Pi 4B?

[John Long]

On Tue, 27 Apr 2021 21:48:34 +0200
Valery Seys <valery at vslash.com> wrote:

> On 27/04/2021 19:27, John Long via freebsd-arm wrote:
> > Hi,
> > 
> > I am looking for information on how to set up a music streamer using
> > FreeBSD on a Pi 4B and what HATs are compatible. I'm sorry if this
> > is the wrong list, aside from freebsd-multimedia I did not see an
> > obvious correct choice.
> > 
> > I run FreeBSD 12.2 on servers now and desktop in the past and have
> > basic familiarity with the OS from a home sysadmin perspective. I
> > have no experience with Raspberry Pi.
> > 
> > I would like to find out what HATs are known to work- specifically
> > those supporting coaxial S/PDIF or AES output. I want to use the
> > device as a transport (no analog out) into a DAC.
> > 
> > Thanks,
> > 
> > /jl
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> 
> don't know what you want to stream, but these are designed to stream
> audio: https://www.musicpd.org/
> https://github.com/xmms2/wiki/wiki

Hi and thanks. I know about mpd, it's on my list of things to try if I
can run FreeBSD on the Pi 4B.

> For Hybrid Audio, if I understand you correctly, I used an m-audio
> mtrack by the past via usb which was recognized through the 'uaudio'
> module and was working 100% well.
> 
> Now, the 'Pi-Industry' provides some embedded HA, through GPIO, but I
> cannot help you on this,

I wasn't talking about audio over USB at all but rather using a "HAT"
as far as I have seen them called, that plugs into the GPIO ports as
you mentioned. The output I'm looking for is S/PDIF coax or AES/EBU.

Bypassing USB is usually a better audio interface if you have an alternative.

Thanks.

/jl