Harmonic Filtering software?

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flabby
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Harmonic Filtering software?

Post by flabby » Fri Jan 31, 2020 8:07 am

I'm looking for software that can automatically filter out the harmonics in a sound file.
I'd like to have the option of filtering out harmonics to leave just the noise of the sound.
I saw this: https://www.image-line.com/plugins/Tools/Edison/

Are there any alternatives?

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mt3
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Re: Harmonic Filtering software?

Post by mt3 » Fri Jan 31, 2020 4:10 pm

"Spectral" software.

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UltraViolet
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Re: Harmonic Filtering software?

Post by UltraViolet » Fri Jan 31, 2020 6:57 pm

There are ways to convert a signal into its spectra (harmonics) in real-time, process it to remove harmonics, and convert it back into a signal. However, they are not perfect and will introduce some distortion.

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soup
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Re: Harmonic Filtering software?

Post by soup » Sat Feb 01, 2020 1:04 am

A de-hum program like rx de-hum or any eq that you can set up like a series of sharp notches can do this. A spectral editor will let you see the harmonics and paint them out.

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Re: Harmonic Filtering software?

Post by flabby » Mon Feb 03, 2020 10:43 am

Thanks. Specifically I'd like to remove the harmonic content of some hand percussion, but keep the noise and transients.

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bphenix
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Re: Harmonic Filtering software?

Post by bphenix » Mon Feb 03, 2020 1:03 pm

This is a feature of Kyma when doing spectral processing. You can create versions of the 'voiced' and 'unvoiced' parts. Unvoiced parts are typically the non-harmonic elements. As you can imagine, it is as much art as it is science with a myriad of trade-offs and fine tuning.

As mentioned, Isotope RX is one of the better apps out there for this type of work and, on the cheap, sharp notch filters.

If it is a one-off, send me a private message of what you are looking for and I could try it with Kyma as I wouldn't mind taking a pass at it as a learning exercise. I've been building spectral based instruments lately but not doing more detailed recreation or restoration work.

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