[LAU] FOSS Ethernet Soundcard

Peter Plessas plessas at mur.at
Tue Nov 24 08:04:25 EST 2009


Some notes (this goes to LAU only please mirror to LAD if necessary):

Have a look into AVB it seems to become the de-facto standard if that is
possible (don't know about hardware/ethernet interface requirements)

Tim Blechmann has written an alsa driver for the digigram lx6464es card,
which is used in some ethersound products (Tim?)
http://en.wikipedia.org/wiki/EtherSound

Rimas Avizienis at CNMAT and Meyersound built hardware alongside a UDP
protocol to stream many channels of audio to custom built hardware, as
for example used in a 120 channel loudspeaker array:
http://cnmat.berkeley.edu/publication/compact_120_independent_element_spherical_loudspeaker_array_progr


regards, Peter

Folderol wrote:
> Recent discussion on LAU morphed into an idea for an Ethernet driven
> sound card, and as this is now becoming a real development the
> suggestion was made that it would be better to transfer the discussion
> here.
> 
> 
> The rationale in brief:
> 
> No proprietry hardware soundcard needed.
> 
> Almost all modern computers have reasonably fast Ethernet connections.
> 
> Potentially up to 20 channels per card - reality will probably be a lot
> different!
> 
> FOSS drivers to connect Ethernet to whatever audio server is on the
> computer - looking at jack right now.
> 
> FOSS within the soundcard module so that protocols/algorythings can be
> tuned for best results.
> 
> FOSH design enabling hardware to be developed and inproved by anyone.
> 
> A number of people have shown interest in this, and we are at the stage
> of starting to knock together some basic hardware for a feasibility
> study.
> 
> 
> State of play:
> 
> On Mon, 23 Nov 2009 14:39:48 +0100 (CET)
> karl at aspodata.se (Karl Hammar) wrote:
> 
>> Folderol:
>>> On Sat, 21 Nov 2009 12:25:36 +0100 (CET)
>>> karl at aspodata.se (Karl Hammar) wrote:
>>>
>>> <snip>
>>>
>>>> Would this project plan be ok:
>>>>
>>>>  software and hw: Karl
>>>>  testing and spec's: Folderol
>>>>  publication via web: anyone??
>>>>
>>>>  git repo: git://aspodata.se/openhw.git
>>>>  mailing list: hopefully this list, else I put one up at my site
>>>>  web site: ??
>>>>
>>>>  intial platforms (both by Atmel):
>>>>  . ATNGW100 (cheap), and
>>>>  . AT91SAM9260-EK (expensive)
>>>>
>>>>  Next step:
>>>>  . set up development platform
>>>>  . simple test with spi and shift registers
>>>>
>>>> Regards,
>>>> /Karl
>>> This is all fine by me, but I would make quite clear that if someone
>>> comes along with access to a {loadsamoney} spectrum analyser I'd be
>>> perfectly happy to step back and take a more supporting role. 
>> Ok, I should get starting then.
>>
>> Regards,
>> /Karl
> 
> 
> Others would be welcome to come on board - pardon the pun!
> 



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