Remove noise having a noise file

[Bwaak]

Say, I have a recording with some audio plus constant noise, and I also have a file with noise only. Is there a simple tool to remove the noise from the first file using the second file as a hint?

[Sharc]

If the noise on the 2nd file is an exact replica of the (additive) noise in the first file you could simply subtract it (noise cancellation).
If the noise on the 2 files are random the difference will still be random noise. So no improvement.

[Bwaak]

It is not the exact replica, but the same kind of an annoying high pitch whine. I am expecting some sort of Fourier transform magic.

[Cornucopia]

What you are wanting to do is called audio deconvolution. Izotope's RX, WaveArts, and other tools do a pretty good job at matching a noise's impulse response and being able to minimize it (if not fully subtract it) from a desired signal. There are some freeware alternatives out there as well (deconvolv, voxengo, etc) although they aren't nearly as successful nor as convenient.


Scott

[Clockwork]

Why not use a sample from the original recording for your noise reduction?

[pandy]

There is many possibilities - for example you can try to use SoX.
https://stackoverflow.com/questions/44159621/how-to-denoise-audio-with-sox

FFmpeg also offer audio denoise filters:
https://ffmpeg.org/ffmpeg-filters.html#afftdn
https://ffmpeg.org/ffmpeg-filters.html#afwtdn

For graphical interface you can use Audacity
https://support.audacityteam.org/repairing-audio/noise-reduction-removal

Personally i use old Audition - there is neat option there - remove everything else than noise - thanks to this you can try to create proper noise profile - by hearing only noise you can find accurate level where nothing except noise is heard (so no tonal sounds, no residual sounds from signal - this is proper noise profile)

[jagabo]

an annoying high pitch whine

You can usually remove that with a tight notch filter of the fundamental and harmonics.