Hello, I'm looking for some advice for an interesting symptom of putting my M-Audio Fast Track Pro USB sound card into ALSA multi mode. This sound card has four physical outputs which are mapped to two 2 channel ALSA streams rather than one four channel stream. I used the ALSA multi plugin to combine these two streams into a single pcm device so JACK can interface with all four outputs. It is working nicely.
Despite no perceptible problems in sound quality or latency, jackd is printing hundreds of XRUN callback warnings to the message console each second! I can operate the system perfectly fine, run multiple applications, connect them to the four virtual outputs with no audible timing issues. What is the meaning of this many XRUN callbacks per second? What kind of performance will this impact if not sound playback? Thanks for your help, Lee Azzarello _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev