[ubuntu] Audio starts beeping for no reason. Is very distorted.

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http://ubuntuforums.org – I have Ubuntu 12.04, and for some reason after a while, all of the audio starts to squeak and beep. This is a high pitch noise, and stops me from hearing the audio. I simply close the program that is playing the audio and re-open it and the problem is fixed. This is a major inconvenience, as I have a long playlist of music on Clementine, and I have to close and re-open it to listen to my music when the beeping starts. Is there a way to fix this (I am fully up to date)? Are there audio drivers I need to download? Thanks in advance. (Hardware)