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Spleeter – Music Source-Separation Engine

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Re: Spleeter – Music Source-Separation Engine

#41
post #27

I often have voice recordings with a lot of background noise (e.g. a public lecture in a room with poor acoustics, recorded from a phone in the audience — there's usually sounds of paper rustling, noises from the street, etc). Is this "source-separation" the sort of thing that could help, or does anyone have other tips? The best thing I have so far is based on this https://wiki.audacityteam.org/wiki/Sanitizing_speech…

I'd generally try iZotope RX for cleaning up audio - Dialogue Isolate is probably the exact feature you would want (and I gather is often used in movies to clean up on location dialogue), but it's only in the most expensive Advanced version:

https://www.izotope.com/en/products/rx/features/dialogue-iso...

Cheaper versions of RX still have various noise reduction tools, de-verb for reducing reverb and room echo, and a range of spectral editing tools as well.

Re: Spleeter – Music Source-Separation Engine

#42
For anyone who wants to try Spleeter in a version that "just works" without having to install TensorFlow and mess with offline processing, Spleeter has been been built into a wave editor called Acoustica from Acon Digital. It's been working really well for me, and the whole package is solid competition to editors like iZotope RX:

https://acondigital.com/products/acoustica-audio-editor/

Re: Spleeter – Music Source-Separation Engine

#43
Out of interest, and to put this in context - your brain can only do this for conversation, not music.

You routinely suppress background noise and room acoustics when listening to someone speaking. But you don't do the same thing when listening to music. At best you can focus on individual elements in a track, and you can parse them musically (and maybe lyrically).

But you don't suppress the rest to the point where you don't hear it.

Re: Spleeter – Music Source-Separation Engine

#44

For anyone who wants to try Spleeter in a version that "just works" without having to install TensorFlow and mess with offline processing, Spleeter has been been built into a wave editor called Acoustica from Acon Digital. It's been working really well for me, and the whole package is solid competition to editors like iZotope RX: https://acondigital.com/products/acoustica-audio-editor/

Does Acoustica offer full ability to rebind the hotkeys?

Re: Spleeter – Music Source-Separation Engine

#45

Out of interest, and to put this in context - your brain can only do this for conversation, not music. You routinely suppress background noise and room acoustics when listening to someone speaking. But you don't do the same thing when listening to music. At best you can focus on individual elements in a track, and you can parse them musically (and maybe lyrically). But you don't suppress the rest to the point where y…

Is there some research behind this or are you opining on how YOUR brain works?

Re: Spleeter – Music Source-Separation Engine

#47

Out of interest, and to put this in context - your brain can only do this for conversation, not music. You routinely suppress background noise and room acoustics when listening to someone speaking. But you don't do the same thing when listening to music. At best you can focus on individual elements in a track, and you can parse them musically (and maybe lyrically). But you don't suppress the rest to the point where y…

Is there some research behind this or are you opining on how YOUR brain works?

https://en.wikipedia.org/wiki/Cocktail_party_effect

Not sure how this pertains to music, but this ability normally requires localizing different voices and noises.

Re: Spleeter – Music Source-Separation Engine

#48

For anyone who wants to try Spleeter in a version that "just works" without having to install TensorFlow and mess with offline processing, Spleeter has been been built into a wave editor called Acoustica from Acon Digital. It's been working really well for me, and the whole package is solid competition to editors like iZotope RX: https://acondigital.com/products/acoustica-audio-editor/

Does Acoustica offer full ability to rebind the hotkeys?

It's something they're working on. You can already change most keyboard shortcuts, but there's a few corner cases that people have been asking for (shortcuts with arrow keys are a problem at the moment). The developers have been extremely responsive to feature requests on the Gearslutz forum though, I've seen some feature requests implemented in just a few days:

https://www.gearslutz.com/board/product-alerts-older-than-2-...

Re: Spleeter – Music Source-Separation Engine

#49
post #5

A local radiostation has a broadcast of four hours. They are required to play an x amount of music tracks by the station (about 6 per hour), but there has been demand to make the broadcast available as podcast without the music. Could this make it possible to automatically remove the music from the MP3 file they have available? With 6 tracks per hour times 4 hours, manually removing the music is time consuming. I dou…

Presumably they own the rights on broadcast material, so they'd have to be directly involved in the podcast production. That given, it would probably be more straight forward to take the microphone feeds from their broadcast desk (via "aux-out" perhaps) and record only the spoken output separately.

Sox etc. could be used for silence detection, probably best done in post (scriptable), but could be piped through after experimenting with settings. Otherwise, even old desks can trigger when a mic channel fader is raised, so that too is a possibility for pausing the recording during music.

Re: Spleeter – Music Source-Separation Engine

#50
post #36

Earlier quoted context omitted.

Wouldn't it be much more efficient for everyone (and even lucrative for the owners) to also provide the studio stems at a slightly higher/different price? (not that some of these are not already available when you know where to search, but it's not very... structured)

Native Instruments tried that with their Stems [0] project. Didn't seem to get all too far though. [0]: https://www.native-instruments.com/en/specials/stems/

This one is proprietary to them.

The "open source" format/practice exists already: just bounce your mix into separate audio files, one for each track or group, into a folder, zip it, ship.

Only, it's not (yet) much embraced on the commercial side. When you pay up to 20 boxes to get a full album, why couldn't you pay, say, 100 to get the same album but with separated tracks for your own use + instructions as who to contact & how for any other kind of uses?

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