On Fri, Sep 20, 2013 at 08:41:10PM +1000, Patrick Shirkey wrote: > > On Fri, September 20, 2013 8:31 pm, Fons Adriaensen wrote: > > On Fri, Sep 20, 2013 at 06:59:06PM +1000, Patrick Shirkey wrote: > > > >> 33114.906 frames 689.894 ms total roundtrip latency > >> extra loopback latency: 32922 frames > >> use 16461 for the backend arguments -I and -O ?? > > > > Note the '??', it means the measurement is not reliable, > > probably due to skipped cycles (i.e. phase discontinuity). > > > > > xruns? Assuming you're measuring a 'clean' channel, the ?? most probably mean a discontinuity in the signal seen by jack_delay. In the sense that part of signal was 'jumped over' - a short gap that preserves the timing would not have any effect. This happens when Jack skips one or more cycles, and this in turn can be the result of an xrun (also of other things, but not in this case). Is your Jack running RT ? Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user