Kevin J. Cummings wrote:
Hi folks. This one has me stumped. I'm having problems with the sound
in .mpg files. I didn't used to have this problem back in my FC2/FC3
days, so I'm not sure exactly when it broke. Now I'm playing with
getting my video capture card working, and of course, it has a hardware
MPEG encoder on it, so none of the videos it produces have good sound.
Or at least, I can't get the sound right.
The Problem:
Whenever I play *any* .mpg file (with mplayer for now), the sound comes
out scratchy and generally unclean. These .mpg files used to play fine
when I originally downloaded them.
Not the problem:
I have no trouble playing .wmv files. The sound is crisp and clean.
Timidity/Festival work just fine.
My system:
ABIT NF7-S2 mother board with onboard nForce AC97 sound chip:
00:06.0 Multimedia audio controller: nVidia Corporation MCP2S AC'97 Audio Controller (rev a1)
Subsystem: ABIT Computer Corp. Unknown device 1c09
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 3
I/O ports at d800 [size=256]
I/O ports at dc00 [size=128]
Memory at ef005000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
I'm using the snd_intel8x0 sound driver (and associated modules).
I'm currently running the 2.6.16-1.2111_FC5 kernel, but I've tried
every FC5 kernel back to FC5 test1, all with the same results, so I am
unable to re-prove that it ever worked.... B^)
My FC 5 system is up-2-date (with yum), and I'm banging my head against
the wall. I originally thought it was the ivtv stuff I had installed,
or the mythtv stuff I was trying to get working, but when I discovered I
can no longer play *any* .mpg (MPEG-2) videos that I've had for years, I
am reverting to suspecting the sound drivers or mplayer.
What to do next?
Sound and video are encoded separately. If the video is fine, then it
seems like a sound decoding issue. See if you can check what codec is
being used (i just go to the properties in Nautilus, on the Audio/Video
tab, probably some terminal command you can use); all the videos I have
right now have mp3 audio.
-Dan
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