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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
You can add the "AUGraphicEQ" plugin to the track. Use the 31 band setting and I think the frequency was something like 16k or 18k.
Hi isteveus, thank you for this informqtion. How do I access AUGraphic EQ please? I think your estimate of the frequency is about right, as to me it is high-pitch, but still audible. As I am now 70 I doubt if I can still hear any higher sounds - not like the 22 kHz of my youth! Keith
Click on the track header to highlight track, Command i to open track info window, Click on the edit tab, Click on one of the empty effects slots and surf down to the Audio Unit Effects, Choose plugin.
Got it! thank you for your guidance. I'll work on those annoying frequencies now. I ery much appreciate your help. Keith
suppress select audio frequency
