[LAU] denoising audio files

Kevin Cosgrove kevinc at cosgroves.us
Thu May 24 14:04:08 UTC 2012

On 24 May 2012 at 13:52, Fons Adriaensen <fons at linuxaudio.org> wrote:
> So that's at least three cases
> 1. Unwanted ambient noises
> 2. Tape noise
> 3. Vynil noise

Other cases I've faced are:

4. Power line hum getting into the recording system.
5. Acoustic hum from florescent lights.
6. Noise from photocopier drum warming getting into
   the power circuit with chirps every 12.6 seconds.

I think Fons is onto something, find the cases for noise
reduction, study the noise content, and devise or apply a
suitable noise algorithm.

For my above cases Audacity's noise reduction is useful.
I'm not in a high fidelity situation.



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