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.96000 and 48000x86-64 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 1.1.6Sound glitchesBoth ALSA and OSSVery weird values, I reported before.> Maybe also nice on Wiki...>>> thanks,>> Takashi>> _______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel
