Subject: Re: [linux-audio-user] Sending and recieving data between computers using JACK
From: John Check (j4strngs_AT_bitless.net)
Date: Thu Aug 19 2004 - 09:52:39 EEST
On Wednesday 18 August 2004 10:20 am, Joe Hartley wrote:
> On Wed, 18 Aug 2004 16:13:21 +0300
>
> Sampo Savolainen <v2_AT_iki.fi> wrote:
> > There is no way of doing real-time processing over a network reliably.
> > Dropouts and timeouts, packet retries are in the nature of computer
> > networks. UDP is a very smart way to (try to) send realtime data through
> > a network. If the implementation is at least average, that is the best
> > performance you can get.
>
> Along similar lines, a friend of mine had been working on some code
> (unfortunately in a Windows environment, and in a programming language
> that he developed himself(!) so the work's not available to me) to do
> something I'd love to implement: synchronized streaming.
>
> I live in a house with 4 distinct areas, with network connected music
> systems in each area. When I have a party, I'd love to have each of
> these machines tie into a stream from my audio server so that they're
> in sync - that is, if I can hear 2 different systems at the same time,
> I want them to be at the same place in the stream, not a second or two
> off from each other.
>
It'd be kind of nice if they were time aligned to one master. It doesn't have
to be sample accurate to avoid sounding like Lou Gehring if somebody is
outside. Of course you'd probably want to add a weather station so you can
compensate for temp/humidity/barometric pressure ;)
> Has anyone heard of anything under Linux that would do such a thing?
> (It just occured to me that tapping into such a stream with a buffer of
> size 0 may do it, though that could open me up to hearing every little
> network burp encountered. I'll have to try that tonight!)
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