[Alsa-user] Problems with oss pcm emulation on sbawe64 pnp since 1.0.11-rc3
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From: Santiago G. M. <ma...@ma...> - 2006-07-05 20:32:56
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Hi! After upgrading to 2.6.17 skype on my Creative SB AWE64 PnP started to sound with really metallic voices, the speed and the tone seems similar to real but the voice is really metallic. I have tracked that down a bit, but don't really know what the problem is. I'm only able to find this problem with skype not with kiax or other similar software, the problem happens with the stable skype or with the latest beta they have in oss mode (they are adding alsa but that looks also broken for my card). I've tracked that down to the changes from alsa version 1.0.11-rc2 to rc3, in fact I compiled those two versions for 2.4.33-rc2 and got the very same problems with 1.0.11-rc3 and later versions while 1.0.11-rc2 worked ok. Also, PCI cards seem to work ok with skype and modern versions of alsa, so I guess this bug could be related to awe cards, maybe all sb16 based stuff. After looking at the changes in my configurations for rc2 and rc3 or later versions (I even tested version 1.0.12-rc1) I saw that rc2 didn't yet have the new oss-plugins, so I said, ok we'll remove the oss-plugins from -rc3 or later with --without-pcm-oss-plugins on configure and that'll do it. Wrong, after removing the oss plugins the voice I get when calling the skype test is ok but I get silences in the middle of it which makes it last longer than it should and continue after the "ding", also when I hear back what has been recorded the tone of my voice is really much higher than it should, even though the speed of it seems similar than it should. Well, like I said... I have only managed to find this kind of problems with skype (I'd sugest you use the stable version if you want to test it) and they are implementing alsa support, so if the bug only happens with skype maybe it's not worth the effort, but it looks to me that this is a problem that other programs may also have, and that is why I'm reporting it. Machines used for my tests were Pentium III and AMD K6-3, using Debian sid and testing (they have alsa libs 1.0.11). Well, if you need more info or tests just ask for what you need. Thanks for making ALSA so good. Regards... -- Manty/BestiaTester -> http://manty.net |