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User Name Thread Name Subject Posted
treewind Tech: Removing hum from old tapes (23) RE: Tech: Removing hum from old tapes 30 Aug 14

This should be a straightforward job for Audacity's noise removal tool, as long as you can get a good sample of the hum by itself, and as long as the hum is constant in level though the recording.

It's more sophisticated than a series of notch filters, which would indeed impair the sound quite badly.

Jonny Sunshine (above) has good advice too.

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