2010/2/21 Kai Vehmanen <kvehmanen@xxxxxx> > Hi, > > > On Mon, 15 Feb 2010, Raymond Yau wrote: > > Even using a high resolution timer , the application still cannot achieve >> latency better than the configured period size >> >> For USB case , the driver cannot give accurate hw pointer position , hw >> pointer increase in steps for the current implementation, (i.e. the graph >> is >> > > ... but that's a real hardware limitation for the USB-driver, right? And > even in the USB case, hw pointer is incremented in steps of URB transfer > size, so even in this case, latency of a highres timer based application is > not limited by the set period-size. > > I guess alsa pulse plugin also has the same problem since the value returned by pointer callback of the pulse device is also not accurate _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
