Date: Mon, 8 Jan 2007 10:47:00 -0200 From: Ricardo Nabinger Sanchez <rnsanchez@wait4.org> To: Yuriy Tsibizov <Yuriy.Tsibizov@gfk.ru> Cc: freebsd-multimedia@FreeBSD.org, Alexander Leidinger <Alexander@Leidinger.net>, Ariff Abdullah <ariff@FreeBSD.org> Subject: Re: kern/107516: emu10k1 - skips, clicks and lag after a day of heavy usage Message-ID: <20070108104700.0e484395.rnsanchez@wait4.org> In-Reply-To: <20070106135030.F642@free.home.local> References: <200701041640.l04GeNAk043403@freefall.freebsd.org> <20070105092343.aeywvr2jack4oc0w@webmail.leidinger.net> <20070105093418.a4622c72.rnsanchez@wait4.org> <20070106041705.582366b8.ariff@FreeBSD.org> <20070105194357.a0ac4dfa.rnsanchez@wait4.org> <20070106135030.F642@free.home.local>
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On Sat, 6 Jan 2007 13:52:00 +0300 (MSK) Yuriy Tsibizov <Yuriy.Tsibizov@gfk.ru> wrote: > I think I fixes most low-bitrate playback problems I had in emu10kx. Tested, and there are still some issues: * roger.wav: no distortions so far, but the play command takes longer to end: % /usr/bin/time -l play roger.wav Input Filename : roger.wav Sample Size : 8-bits Sample Encoding: unsigned Channels : 1 Sample Rate : 22050 Time: 00:00.88 [00:00.00] of 00:00.88 ( 100.0%) Output Buffer: 19.51K Done. 3.01 real 0.01 user 0.02 sys 1852 maximum resident set size 143 average shared memory size 124 average unshared data size 128 average unshared stack size 484 page reclaims 0 page faults 0 swaps 0 block input operations 0 block output operations 0 messages sent 0 messages received 0 signals received 290 voluntary context switches 19 involuntary context switches * chat1.wav: there's no initial glitch, but while the sound is playing back, a small and progressive distortion is noticeable. It sounds like amplitude clipping, and reminds me of the noise of loosely connected analog audio cables. * _roger.wav (22050 Hz, 16 bits, signed, stereo): no distortions/glitches. * offset_sine.wav: no initial glitch (expected), but the same type of distortion with chat1.wav, only louder. * sine.wav: no initial glitch (it happened before), and the same type of distortion with offset_sine.wav. Forcing sine.wav, offset_sine.wav, and chat1.wav to stereo output doesn't help to avoid the distortion, the distortion only gets complex, with a behavior similar to constructive/destructive waves. With XMMS I noticed noises right after hitting play and stop, and when it goes to the next music. The sound reminds me of LP player (vinyl records), because it's very quick and sounds similar. There's no such noise in the remaining of the musics, though. Is there any way to test using cat directly to device, to rule out problems caused by either sox's play or XMMS? Regards. -- Ricardo Nabinger Sanchez <rnsanchez@{gmail.com,wait4.org}> Powered by FreeBSD "Left to themselves, things tend to go from bad to worse."
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