At Mon, 27 Oct 2008 09:34:27 +0300,The Source wrote:> > Takashi Iwai пишет:> > At Mon, 27 Oct 2008 08:32:05 +0300,> > The Source wrote:> > > >> Alexander E. Patrakov пишет:> >> > >>> Takashi Iwai wrote:> >>> > >>> > >>>> A few important features are in my mind:> >>>> - continuous rate support> >>>> > >>>> > >>> In the sources, you have:> >>>> >>> > >>> > >>>> Note: 44.1kHz is possible, but is more complex because it uses a method> >>>> whereby the channel ring marks each sample in the channel ring as valid> >>>> or not, so to get 44.1kHz, some samples are simply tagged invalid. The> >>>> "channel ring" is not the ring buffer that is used to get sound samples> >>>> to the card. The "channel ring" is used to pass samples between> >>>> different processing modules on the card. One of these processing> >>>> modules is the SRC, another is the INs/OUTs, another is the hardware> >>>> mixer, and yet another is the DSP.> >>>> > >>>> > >>> Do I understand correctly that the card internally resamples the sound > >>> to a different rate using the zero-order-hold method? If so, I'd rather > >>> not see this feature at all unless the "i_want_horrible_sound" parameter > >>> is passed, because software can do it better, and some program will > >>> surely default to using this hardware misfeature.> >>>> >>> OTOH, Wine is doing this for ages and nobody except me complains > >>> (http://bugs.winehq.org/show_bug.cgi?id=14717)> >>>> >>> > >>> > >> Wine causes sound corruption with this driver for me (along with some > >> other software like Pulseaudio).> >> > >> > Does it happen also with base_rate=48000 option?> > > Yes.> > It'd be helpful if someone can summarize the working and non-working> > cases. For example,> >> > global info:> > 1. sbxfi driver version (date & HEADs)> > 2. base_rate value> > 3. system details (x86-64, distro, kernel version, etc)> >> > > 26.10.2008 snapshot, don't remember the time. Add prefix numbers (1, 2, 3) to each item. See HEAD files in alsa-driver*/ and alsa-driver*/alsa-kernel, and takethe first line. > 96000 and 48000> x86-64 Fedora 9 kernel-2.6.26.6-79.fc9.x86_64> > for each app:> > A. Application name / version> > B. working or not-working, problem descriptions> > C. ALSA or OSS (you can see it in /proc/asound/card*/pcm0/sub0/hw_params)> > D. period_size and buffer_size (ditto, or in kernel message)> > E. any special options> >> > > Wine 1.1.6 Add prefix to each item, too. > Sound glitches> Both ALSA and OSS> Very weird values, I reported before. Write it up again. Takashi_______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel
