http://bugs.winehq.org/show_bug.cgi?id=9358
--- Comment #26 from Raymond superquad.vortex2@gmail.com 2010-04-25 21:10:53 --- (In reply to comment #19)
If you set realtime priority, and really want the lowest latency wine doesn't officially support it. But these settings would help:
int ds_snd_queue_max = 10; int ds_snd_queue_min = 6; int ds_snd_shadow_maxsize = 2;
Change to 4, 4, and -1 in dsound_main.c
in primary.c you have a function called DSOUND_fraglen, change it to return 256 instead of 512
That's probably about as low as it can get, tinkering with DSOUND_fraglen and ds_snd_queue_max is the only way to go lower than 90ms, but it's not officially supported. So do this at your own risk
http://source.winehq.org/git/wine.git/?a=commitdiff;h=7926eba0d5dd4e8b6360ba...
The point is wine set period time to 22000 but rate is 44100 and the most common sound card is HDA which has a constraint of in period_bytes and buffer_bytes
you cannot get exact period time 22000 and buffer time 120000
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 128); snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 128);
http://git.alsa-project.org/?p=alsa-kernel.git;a=blob;f=sound/pci/hda/hda_in...