This patch suppresses jitter on several Maestro cards in stereo mode (ALSA of course). The patch is also incorporated in the *BSD drivers where I "ported" it from. I am barely used to driver-development so please take a look (esp. the channel parameters), nevertheless it completely works for me. Without this patch most of the stereo audio gets out of sync and really distorted (oss-emulation with mplayer at 48000khz worked somehow). CCed to those listed in the .c file. Yours sincerely, Andreas Mueller.