[Clemens Ladisch] >In most cases, the ALSA buffer/period parameters directly reflect >hardware parameters, but in the case of protocols like USB where it is >not possible to transfer data directly out of a ring buffer, there is an >additional packet queue, which adds latency. (The length of that queue >is either constant or proportional to the period size, depending on the >driver.) Thanks you Clemens for clearing that up. How would one go about determining the size of this queue between ALSA and USB? And is it correct to assume that in a best-case scenario where the sample clock is synchronised to the USB clock and the period size coincides with the interval at which USB frames are signalled, the additional latency will be one period? Cheers, Tim _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
