[MPlayer-users] SiS PCI Audio Accelerator - broken hardware????

[D Richard Felker III]

On Mon, Mar 31, 2003 at 10:27:18AM -0500, Yan Seiner wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> I'm still on the track of the audio delay.  I've been playing with
> streamer, the basic vidcap utility that comes with xawtv.
> 
> When I use /dev/dsp, which is the on-board sound card, it shows the
> exact same behavior as mencoder - the sound lags behind.  I'm guessing
> that the mobo is dropping interrupts.
> 
> This is reproducible on two completely different machines with the SIS
> 630 chipset.
> 
> The sound delay problem goes away if I use btaudio sound (of course I
> can't capture the sound from my VCR that way.)
> 
> Anyone else using SIS audio chipsets?
> 
> I'm attaching /sbin/lspci output from the two machines:
> 
> Machine 1, AMD XP 1600+ CPU, SCSI drives
> 00:00.0 Host bridge: Silicon Integrated Systems [SiS] 730 Host (rev 02)
> 00:00.1 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev
> d0)
> 00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513
> 00:01.1 Ethernet controller: Silicon Integrated Systems [SiS] SiS900
> 10/100 Ethernet (rev 82)
> 00:01.2 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 07)
> 00:01.3 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 07)
> 00:01.4 Multimedia audio controller: Silicon Integrated Systems [SiS]
> SiS PCI Audio Accelerator (rev 02)
> 00:02.0 PCI bridge: Silicon Integrated Systems [SiS] 5591/5592 AGP
> 00:09.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895 (rev
> 01)
> 00:0b.0 Multimedia video controller: Brooktree Corporation Bt878 Video
> Capture (rev 11)
> 00:0b.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture
> (rev 11)
> 01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G550 AGP
> (rev 01)
> 
> Machine 2, Athlon 1GHz CPU, IDE drives
> 00:00.0 Host bridge: Silicon Integrated Systems [SiS] 730 Host (rev 02)
> 00:00.1 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev
> d0)
> 00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513
> 00:01.1 Ethernet controller: Silicon Integrated Systems [SiS] SiS900
> 10/100 Ethernet (rev 82)
> 00:01.2 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 07)
> 00:01.3 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 07)
> 00:01.4 Multimedia audio controller: Silicon Integrated Systems [SiS]
> SiS PCI Audio Accelerator (rev 02)00:02.0 PCI bridge: Silicon Integrated
> Systems [SiS] 5591/5592 AGP
> 00:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video
> Capture (rev 11)
> 00:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture
> (rev 11)
> 00:0b.0 Network controller: Linksys: Unknown device 8201 (rev 11)
> 01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS]
> SiS630 GUI Accelerator+3D (rev 31)
> 
> Any way to confirm that it is in fact the chipset or mobo?  Any
> recommendations for hardware for vidcaps?

I would recommend getting a decent sound card and disabling the
onboard junk. Onboard sound is known for having buggy recording.

Rich