Mark Knecht wrote: > On Mon, 2003-12-08 at 16:29, Jack O'Quin wrote: > > Steve Harris <S.W.Harris@xxxxxxxxxxxxxxx> writes: > > > > > Latency shouldn't be an issue - the 1394 bus is low latency - higher > > > latency than PCI I expect, but still not measurable in audio terms. > > > > Does it have the same problem as USB, using fixed-time rather than > > fixed-size packets? Yes. > > I seem to recall that it does, but that the packet size is smaller, > > making the latency problem easier to deal with. > > Isoch - 1394 has a timer operating on the bus. This timer happens > (roughly) every 125uS. USB isochronous transfers happen once per millisecond. Regards, Clemens
