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StemRoller – Isolate vocals, drums, bass, and other stems from any song

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Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#91
post #84
post #56

Honestly, this sort of thing is cool; but why (in general) is it necessary in the first place? If the elements of the song are recording in isolation - which they are in all studio versions, why can't we just move to a format that supports the layering?

This is like asking why we need decompilers.

> (In general)

Yes, I agree.

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#93

Earlier quoted context omitted.

This is a real design problem - many web sites do this. Saying so and suggesting an alternative isn't being pedantic.

> It does seem rather disingenuous that the product page makes no mention that the author didn't do the heavy lifting, It does seem rather disingenuous that your replies make no mention of admission for making a factually incorrect statement in the first reply. Not a big deal to me personally, but it is not surprising that some people see this as being petty.

Thanks for clarifying. I did think saying "Thanks" to the person who corrected me is a straightforward admission that I was wrong... if not - yes, I was wrong.

To the downvoters above: is a "thanks" to a correcting comment not enough on HN?

Also, was it rude to say hiding content "below the fold" is a design problem?

This is a very odd thread to me - like I was being chased down by pedants who are calling me pedantic.

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#94
post #30
post #2

Are there any public examples of the split audio files?

From the Demucs project page: https://soundcloud.com/honualx/sets/source-separation-in-the...

That playlist cover can definitely pass as an album art.

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#95

Earlier quoted context omitted.

I'm curious, what is the business justification for funding development of Demucs, if you don't mind me asking? It doesn't seem very related to FB's core business.

Just a guess here, but I wouldn't be surprised if it's used to better spy on your messenger audio conversations. They already listen in and will pick up keywords to populate your FB ad stream.

That’s absolutely not true. Facebook does not listen to your conversation: https://twitter.com/jspujji/status/1474797770871615497?s=20&...

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#96
post #85

Earlier quoted context omitted.

It's free.

And otherwise identical?

Demucs did a much better job of isolating the bass on a blues track than LALAL. The bass actually sounded like a bass. LALAL got the note pitches but lost their attacks.

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#97
post #36

Not to be dismissive, but as far as I can tell, the heavy work is done by facebook's demucs and this is an electron front end to run the demucs cli (and I guess search youtube for videos to download). The demucs project page has more information. https://github.com/facebookresearch/demucs

Original Demucs author here. Thanks for putting forward our research! I’m definitely happy to see more front ends for Demucs being developed and to read that it has been useful to other musicians! We are working on the next iteration of the model, and with more sources, hopefully released by the end of the year :) If you are interested in this research you can follow my Twitter (@honualx) or star the Demucs repo.

Hi, I just downloaded demucs yesterday and started using it. It's amazing! I really appreciate all the work you put into making it easy to install and understand.

Is there any chance you can disentangle guitar and keyboard? I work a lot with Grateful Dead music and I'd like to be able to pull jerry's guitar out from the keyboard from live shows. Similarly, it would be cool if you could parse shpongle into its consituent tracks, but I think that's probably impossible.

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#98

Earlier quoted context omitted.

I’ve found Lala to be my go to. If this is better, then I’m very interested in trying it out.

Just a follow up. My two conversions so far, Lalal.ai has been better. Especially separating drums from instruments. I'll give Stemroller a few more tries as I am always looking for options.

Update number three. I now just use both lalal and stemroller because each one seems to do better in certain cases. If I hadn’t paid for lalal, I’d probably just use stemroller as it’s way better than RX9

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#99

Earlier quoted context omitted.

Just a follow up. My two conversions so far, Lalal.ai has been better. Especially separating drums from instruments. I'll give Stemroller a few more tries as I am always looking for options.

what genre of music, may i ask?

RNB, NeoSoul, Trap

Re: StemRoller – Isolate vocals, drums, bass, and other stems from any song

#100
post #42

Earlier quoted context omitted.

Did you use a FLAC/WAV file? That should yield the best results. (Only asking because you linked to YouTube, and I'm not sure if you used the YouTube audio for your source.)

Perhaps you're right, I'd have to check. I typed the song in the search and pressed the first likely result, which is the youtube video I linked. Using the software as intended I believe.

YouTube audio is optimized for bit rate, not quality (128K MP3). You will get better results with a higher-bitrate MP3 (320K would be good), better still with an uncompressed format like FLAC or WAV.
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