09-26-2011 01:37 PM
I have been noticing a very disturbing series of musical tones in the background audio on different channels
for different broadcasts. It occurs during Letterman when the crowd is applauding, as well as sporting
events like football when the crowd cheers loudly, and happened during the Emmys.
What are these tones? Who is broadcasting them?
Most importantly, how can they be removed so I can't hear them anymore?