On Thu, 15 Nov 2001 13:50:39 -0500 Paul Davis <[EMAIL PROTECTED]> wrote:
> >> Hmm sounds like h/w problem, then.. > >> It's interesting to know where the data is contaminated, whether on > >> the driver level or transfer between capture and playback on > >> user-space, or what else.. > > > >I would say on driver level: I write the data to disk right after the > >snd_pcm_readi call. > > i hope i'm forgetting something. you're not writing to disk from the > same thread as called snd_pcm_readi are you? that's guaranteed to > eliminate low latency performance ... As a matter of fact I am, but in this case I am not measuring latency. What happens is that the sound thru of the alsa-lib/test/latency sounds bad. I want to know where this happens, so I write the input to disk right after snd_pcm_readi. With a big fragment size. And obviously, the problem existed before I started writing to disk; if not, I would not have written to disk :-) Maarten _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
