[linux-audio-dev] alsa ethernet streaming?

[Garett Shulman]

Asbjorn, LDAS looks perfect. Can you give more detail about the status? 
-Garett

Asbjørn Sæbø wrote:

>On Thu, Jun 16, 2005 at 11:38:24AM -0600, Garett Shulman wrote:
>  
>
>>Hello, I would like push audio streams over ethernet and was wondering 
>>what avenues people have tried. 
>>    
>>
>
>I have an interest in the same thing, but with an emphasis on low
>latency.  I did a little bit of looking around this fall, but did not
>find much.  There are of course the normal streaming solutions, like
>Icecast, which seem to work well, but has to large a latency for my 
>purposes (distributed music playing).
>
>What I ended up with was writing my own.  (Currently with assistance
>from Lee Revell.)  It has not come very far, but I am able to stream
>music from one computer to another.  It also deals with transmission
>problems (lost/duplicate/out of order/late packets) and drift
>adjustment.  I have plans to release it in the not to distant future.
>See <URL: http://www.q2s.ntnu.no/~asbjs/ldas/ldas.html > for more
>information.
>
>Then there is jack.udp, which I discovered half a year after starting my
>work.  This seems like a good tool.  It streams jack data between two
>jackds running on different computers.
>
>
>There are a couple of reasons I didn't switch to jack.udp myself.  As
>far as I have understood (and I may well have misunderstood), jack.udp
>does not do drift adjustment, so it will have synchronisation problems
>if you want to use it between two computers with un-synched soundcard
>clocks driving jackd.  It will work well if one of the jackds is a
>"slave" jackd, though. (Somebody please correct me if I'm wrong here.)
>
>Also, the jack format keeps samples as 32bit floats.  Although I do not
>care that much for bandwidth issues, I found that doing away with half
>of this, using  16 bit PCM, was valuable when transmitting over the 
>Internet in general.
>
>Asbjørn
>  
>