Remove noise with Parselmouth about parselmouth HOT 3 CLOSED

The praat function you linked to does base its noise reduction on a sample of noise. That's what the noise time range parameter selects. And the bandpass filtering is under user control too.

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I don't think there's a Python API for this yet (not sure why; I thought the Sound interface was pretty complete), but just like in #25, you can access Praat functionality through parselmouth.praat.call. So, something like parselmouth.praat.call(sound, "Remove noise", 0.0, 0.0, 0.025, 80.0, 10000.0, 40.0, "Spectral subtraction") should work. These are Praat's default parameters, so you might want to change them.

Apart from that, as @drammock mentions (thanks, @drammock!), the Praat functionality is indeed documented on the Praat web page you link to. I don't really know more about the internals of this function, but that seems to be a nice explanation? There's also some explanation on how Praat can automatically guess where the noise is. Otherwise, you could probably concatenate a fragment of noise to the front/back, use it in this function, and remove it later.

I'm going to close this as not really being a Parselmouth issue, but more related to standard Praat functionality and usage. Feel free to more informally discuss or bounce ideas on Gitter, though.

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The problem is that I don't know the location of the noise without signal in audio files. It differs from file to file. I have a file with just noise and I'd like to use it for all the files.

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