Ubuntu – vlc player scrambled audio after skipping through a movie

soundvlc

When I watch a movie in vlc and I fast forward or backward the sound suddenly becomes very creaky, it sounds hollow and scrambled, after a few minutes it goes away.

I just installed Ubuntu 12.10. and before that I had xubuntu, then I had the same problem. totem works fine.

Does anyone have any idea how I can fix this?

Greetings
mies

Best Answer

This fixed it for me:

Edit the file /etc/pulse/default.pa.

Replace the line:

load-module module-udev-detect

With:

load-module module-udev-detect tsched=0

Restart your computer.

Related Solutions

Ubuntu – Bursts of white noise sound when playing videos

To confirm if this is a pulseaudio issue, I would temporarily disable pulseaudio:

echo autospawn = no|tee -a ~/.pulse/client.conf && killall pulseaudio

Then in MythTv - Utilities/Setup - Setup - General change your Audio settings to ALSA:default

To revert to pulseaudio:

change the value of autospawn=no to autospawn=yes in ~/.pulse/client.conf

Then logout and login

Once confirmed as a PulseAudio issue, you perhaps have three choices:

File a bug report with the MythTV developers and hope that they fix the issue. You'll need to be proactive with them to enable them to help you etc.
Look at the existing 10.04 pulse-audio bug report and see if the same or similar patch can be done to the Oneiric MythTV sources - not for the faint-hearted!
Look at just use ALSA:Default as the MythTV audio-setting. You shouldnt need to kill the host pulse-audio - thus multicasting etc should still work. You may need to enable the MythTV software controls to change sound settings. Alternatively/Additionally, install gnome-alsamixer or just alsamixer to control your audio settings such as volume, enabled speakers etc.

Ubuntu – VLC player mutes when seeking

I experienced this on two different distributions. The solution was, as suggested above but found experimentally, to switch to "ALSA audio output" module with "Default ALSA Output (currently PulseAudio Sound Server)" device. This worked for both. It changes no functionality since ALSA gets routed through Pulse anyway.

Note you may need to restart VLC after switching the output module and device and make sure there's no lingering instance (reboot to guarantee). Otherwise it's easy to think it didn't work.

Best Answer

Related Solutions

Ubuntu – Bursts of white noise sound when playing videos

Ubuntu – VLC player mutes when seeking

Related Question