At Mon, 09 Nov 2009 13:34:34 +0000, Daniel Drake wrote: > > Hi, > > In our musical activities, the OLPC/Sugar platform uses csound which in > turn uses ALSA for playing sounds. > > On our latest XO hardware model, where we now use HDA instead of cs5536, > we are experiencing some crackly sounds from our csound-based > applications. Other apps are fine. > > We discovered that changing the dmix rate from 48000 to 44100 solves the > cracklyness. > > What does this indicate? > > Might csound be producing sounds at rate 44100, which dmix previously > had to convert to 48000, which was too taxing to the system? Might be. Another possible problem is the position update bug. Try to pass position_fix=1 option and/or bdl_pos_adj=0 to snd-hda-intel module. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
