On Sat, Aug 02, 2008 at 01:01:12PM +0200, Pieter Palmers wrote: > Florian Faber wrote: > > Peter, > > > >> I doubt that it is easy over a transport protocol that doesn't have a > >> global absolute time reference (like ethernet). > > > > What time reference do you have in mind on ethernet that can be used as > > word clock source? > > My formulation is a bit unfortunate. I mean that ethernet does NOT have > a global absolute time reference. And word clock is not a time > reference. It's a 'rate' reference, which does not contain absolute time > information. What you need to output signals on different devices with > sample accurate phase is an absolute time reference. Which ethernet does > not have.
The solution I'm using in this case is to distribute a single audio signal (similar to the one used in jdelay) to all computers. The signal can be decoded into a sub- sample accurate time, and all network data are timestamped using this time scale. Ciao, -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia O tu, che porte, correndo si ? E guerra e morte ! _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
