When playing any audio the audio quality on my Thunderbolt display steadily worsens over an hour period and becomes garbled. Restarting the media player fixes it. Does not occur when MacBook Pro is undocked.
When playing audio/video on my MacBook Pro docked to Thunderbolt display the audio quality steadily worsens until it is garbled beyond understanding. I don't know if it occurs when using the MacBook undocked. It takes about an hour to become noticeable and steadily worsens. Simultaneously when the computer speaks the time this is also gargled. As the problem develops it sounds like there is a static halo around each spoken word.