> > USB cards often work a lot better (allow much smaller buffer sizes) > > when used with 3 periods instead of 2 when Fs = 48 kHz. Apparently > > having a total buffer size that is a multiple of 48 helps. > > I can confirm that by trial and error experiments. >
Same here. Somewhere I read ALSA USB works better if the buffer is an integer number of milliseconds long (hence the 48 KHz, n * 48 frames buffers). Gr. Luis