Re: [linux-audio-dev] Broadcasting delays

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Subject: Re: [linux-audio-dev] Broadcasting delays
From: John Lazzaro (lazzaro_AT_CS.Berkeley.EDU)
Date: Tue Aug 14 2001 - 00:10:43 EEST


Hi Alex,

> One year ago I
> heard of theoretical value of 25ms using RTP but I never could reach that.

For measurements, see:

http://www.cs.berkeley.edu/~lazzaro/sa/pubs/pdf/nossdav01.pdf

The system described in this paper is now built into sfront, we have
a SIP server running at Berkeley that a few people have used since
we released sfront networking last week, things seem to be working OK;
actually a new sfront release that fixes some problems on poorly-
configured DHCP clients will be coming out later today. To read how
this sort of networking runs on sfront, see:

http://www.cs.berkeley.edu/~lazzaro/sa/sfman/user/network/index.html

Hope this helps, the approach sfront uses is IETF-based (RTP + SIP),
a different approach is to use Open Sound Control, hopefully people
doing OSC work will post as well ...

> Is this an interesting subject for this list ? I hope ....

LAD seems pretty broad-based topic-wise, I'd think its OK ... also,
though, you might want to joing this, very-low-volume list:

http://www.informatik.uni-mannheim.de/netgame/

                                                                --jl

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John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley
lazzaro [at] cs [dot] berkeley [dot] edu www.cs.berkeley.edu/~lazzaro
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