On Sat, 2008-08-02 at 13:47 +0200, Pieter Palmers wrote: > Fons Adriaensen wrote: > > 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. > > Now that is a clever solution! Simple and elegant...
and the basis of Steinberg's VSTLink, btw .... except that they did it by stealing a couple of bits from the sample bitstream, and distributing the signal. _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
