In a recording there are usually a few seconds of dead air or "white space" before you record. It's a good idea to leave yourself 3 - 5 seconds before you record as well as after you record..
In Audacity there is a Noise Reduction or Removal (NR) tool available. After you make your recording, you can activate the "noise removal" option. The NR option will allow you to sample the offensive noise. Once the sample has been taken, you can high-lite the entire track, engage the NR. Based on the frequencies int the sample, the NR tool will remove it from the entire track. The NR is intelligent enough to only pull the freq's from the sample.
Les
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Respect The Music
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