I set up the buffer_bytes_max to correspond with a buffer size of 4 kB. For S16_LE and stereo interleaved, that means 1024 frames in the buffer. When it goes above 512, I get a BUG warning from ALSA: [ 241.219184] ALSA sound/core/pcm_lib.c:352 BUG: pcmC3D0p:0, pos = 512, buffer size = 512, period size = 128 I guess I will have to drill down into ALSA and see where that buffer size is coming from. -Paul Stone _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel