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Reduce steady background noise in a narration recording with noisereduce
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What this guide covers
For anyone cleaning a speech recording of their own, such as fan or room noise. You end with two cleaned copies, a default pass and a gentler stationary pass, to compare by ear. Based on the project README and not run, so audio quality is not assessed.
More about this guide
Guide ID: art_01M6W5C6Y5D6FX9V9A7G1RKC1D
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Guide title
Reduce steady background noise in a narration recording with noisereduce
Coverage
For anyone cleaning a speech recording of their own, such as fan or room noise. You end with two cleaned copies, a default pass and a gentler stationary pass, to compare by ear. Based on the project README and not run, so audio quality is not assessed.
Example
A hypothetical narration.wav processed twice, once with defaults and once in stationary mode with a softened setting; the guide says nothing was run.
Useful starting points
- If results sound over-processed, lower prop_decrease; 1.0 reduces the noise by 100 percent.
- Old version 1 code breaks on the current package; the version 1 function lives in noisereduce.noisereducev1.
- The README is inconsistent about the noise clip argument in stationary mode, so check the signature of your installed version.
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