On 2 June 2015 at 10:12, Michael Tokarev <m...@tls.msk.ru> wrote: > I also tried alsa, oss and pa, with these audio was more > distorted than with sdl. Sdl version sounds cleanly, while > alsa and pa, at least in the past, and at least if memory > serves me right, sounded like a if a good portion of noize > has been mixed in with sound, or like when sound is with > quick monmentary drops which happens at high frequency > (maybe 200Hz). > > SDL audio has been the default in Debian for at least two > debian releases because of that, we explicitly used > --audio-drv-list=sdl,... to list sdl first. Now we have > pa first, but I don't really remember why we changed it.
I think the important thing here is to avoid ever using any of the audio subsystems' back-compatibility layers. For instance PA can provide an alsa-compatible interface, but if you use it you've just added an extra layer of buffering (and a random thread) to your system. So at a distro I would expect there to be a "this is the standard audio subsystem" distro-wide decision, and the QEMU packages would then follow that. thanks -- PMM
