Getting rid of audio hum can seem mystifying and frustrating. Here are some tips.
audio
What is the best way to connect a new iMac to my high definition TV?
Whenever I plug a phono lead into my MacBook’s audio output, iTunes fires up and starts playing. How can I stop it?
How should I send an audio birthday message to a friend who is not computer-literate?
Suggestions as to how to remove observer bias when comparing audio, images, and other subjective comparisons.
Mail has started making whooshing and other sounds, and sometimes Finder does too. How come?
Since updating iTunes, it has gone mute, although other audio works fine. Is this a bug in iTunes?
When I connect the USB audio interface, there is a loud buzzing in the speakers. Why?
How can we keep our classroom Macs quiet?
Can I import the soundtrack from a DVD into iTunes?
The Eclectic Light Company 