video/audio problem

[KegHead]

Hi!

I built a new system over the holidays;

msi mobo
amd quad 4
4 gb ram

ubuntu 12.10 (64)

I'm getting a screeching sound with video playback.

Any ideas?

Thanks!

KegHead

[Luigi2012SM64DS]

please give output of:

lspci -v | grep -A7 -i "audio"

(Paste that into a terminal)

[KegHead]

jim@jim:~$ lspci -v | grep -A7 -i "audio"
00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA)
Subsystem: Micro-Star International Co., Ltd. Device f641
Flags: bus master, slow devsel, latency 64, IRQ 16
Memory at fe9f4000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel

jim@jim:~$

[sudodus]

Do you get the screeching sound only, or can you hear the desired audio, but have the screeching sound along with it?

Have you set reasonable gain levels internally (for example with the Pulse Audio Control Panel)? Too high levels tend to cause distorsion.

[KegHead]

Hi!

you hear the desired audio, but have the screeching sound along with it.

Only while playback of avi, mpg ect.

KrgHead

[sudodus]

1. Then I suggest you tweak the settings with the Pulse Audio Control Panel.

2. Or do you get a closed loop with feedback via loudspeakers and microphone? In that case use a headset or disable the microphone temporarily.

[KegHead]

Hi!

Thanks!

I'll at it on 1-1-13!

KegHead

[KegHead]

Hi!

For some reason when I loaded 12.10 the restricted extras were not loaded.

Installed them...I'll give feedback.

KegHead

[KegHead]

Hi!

1. Then I suggest you tweak the settings with the Pulse Audio Control Panel.

It worked!

KegHead