If you've ever recorded a podcast, music, or a speech, you've probably had to deal with background noise. Unless you've got a professional setup, it's hard to avoid an annoying hum or hiss in the ...

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For some reason I had a nasty hum in the background of the the interview I recorded for next week’s Radio program. I knew Audacity (did I mention it is free?) had a noise reduction filter, but the one ...