Removing surrounding noises from voice recording

Posted by Peak Reconstruction Wavelength on Programmers See other posts from Programmers or by Peak Reconstruction Wavelength
Published on 2013-06-29T03:10:00Z Indexed on 2013/06/29 4:27 UTC
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c#

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Patterns

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adobe

I have a wave file whose frequency spectrum looks like this.

http://i.stack.imgur.com/2rRaS.png

It contains audio, which I want to keep while removing the rest. The problem is that the surround noise changes, just those distinct voice patterns remain. I marked the voice patterns for clarity:

http://i.stack.imgur.com/eLkBl.png

What could an algorithm look like / a workflow in adobe audition look like that removes everything but the voice patterns? I think that the main characteristic is the line-shaped form over time. Loudness alone is not enough as the noise is loud aswell.

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