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suppress select audio frequency

321 Views 4 Replies Latest reply: Jan 7, 2013 9:14 AM by Keith Worsley-Brown RSS
Keith Worsley-Brown Level 1 Level 1 (20 points)
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Jan 6, 2013 6:56 PM

I have an old cassette tape-recording, recorded from the BBC radio.  I have recorded it in garageband, but the original recording had a high-pitched whistle, caused, I think, by noise from a nearby TV.  Many people would remember that annoying whistle that we used to get on radio from local TVs. Does anyone know what that frequency is, and how I could supress it in GB?  The visual EQ window only seems to allow adjustment of a broad band of frequenies.  Thanks, Keith

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