On Mon, Sep 17, 2007 at 08:44:03PM +0100, John Rigg wrote:
On Mon, Sep 17, 2007 at 12:22:19PM +0200, Ludovico Verducci wrote:
Hello all!
I'm developing a complex multichannel audio distribution system where multiple linux boxes will stream audio data over ethernet and then should play audio at sample level resolution synchronization. The boxes clocks are synchronized over ethernet using PTP. I need to keep in synch the audio board's clocks and I can't use an external wordclock nor s/pdif.
Won't this cause serious clock jitter problems? I don't see how the PCI bus can deliver precise enough timing, considering how much other data it has to handle.
And I can't see any way that the clocks can be synced to sample accuracy over ethernet. That's what external word clocks are for. Even with a word clock I suspect that the latency of the ethernet connection would be too high to allow sample accurate sync of the audio.
John