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sound - Audio not working in ubuntu 12.04 - Ask Ubuntu
https://askubuntu.com/questions/397799/audio-not-working-in-ubuntu-12-04
lspci | grep -i audio this is very suspect - do you really have two video cards from different manufacturers ? Which of these appear in output of : sudo lshw ubuntu releases new versions every 6 months (12.04 was released month 4 of 2012) so 12.04 is 18 months old - I also experienced sound issues on earlier releases - ubuntu 13.10 seems fine.
Ubuntu – Crackling and feedback with Presonus AudioBox USB ...
https://itectec.com/ubuntu/ubuntu-crackling-and-feedback-with-presonus-audiobox-usb-on-12-04/
I have a similar problem with the Presonus Audiobox 1818. With Ubuntu 12.10 I had the issue appear often, but turning the card off and on (often a few times) would eventually fix it. With Ubuntu 13.04 I found no way of doing this. I installed Ubuntu 12.04.2 and it …
'SoundWheel' Adds a Visualization to any Audio Playback in ...
https://www.hecticgeek.com/soundwheel-adds-visualization-audio-ubuntu/
‘SoundWheel’ Adds a Visualization to any Audio Playback in Ubuntu (13.04, 12.10 & 12.04) September 21, 2013 by Gayan Most music managers and media players come with built-in visualizations, but there are also a few, that does not.
Install CAVA Audio Visualizer In Ubuntu 20.04 - YouTube
https://www.youtube.com/watch?v=2YRL3dJwZg4
How to install the cava, the console audio spectrum visualizer, in Ubuntu 20.04.
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