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Demucs - Stems Extraction Tool

Yes I read that. I'm just trying to find out if the extras model is already in the colab method. :p

Yes, that's why there is "demucs_extra" in the code :)
If you want, you can try the regular model, just remove "_extra" from the name, but I highly doubt it will be better. The extra model was trained with more songs.

Also, there is another model that sometimes provides better drums and bass (mostly on songs with a lot of acoustic drums and guitars), it's called "tasnet_extra". Just replace that in the code where you put your song name, though it takes more time to finish than demucs_extra.
 
I personally found that the vocals on this stems collab works better than the usual AI that was originally created. It doesn't make instrumentals as well. But does do a good job isolating otherwise. It's insane how clear a lot of this stuff is.

Thanks to all that are working on this. I really appreciate it.
 
Does anyone know if it's possible to "train" it ourselves using the stems and multitracks here on LR?
 
Yes. you can. You can read about it here https://github.com/facebookresearch/demucs
You will just have to replace the MusDB dataset with your own pairs of stems.

Interesting, will have to take a further look.

Just tried chucking Harvester of Sorrow off of Metallica's "And Justice for All" album through it to see if I could extract the bass from it...unsuccessfully. I knew it was probably too much to ask, but they really REALLY buried the bass on that album. You get little blips here and there of it coming through which is amazing in itself to be able to pick that out of obscurity, but nothing concrete enough to hear the full bassline sadly.
 
Further to my previous post though, the other stems off of the run through of Harvester actually sound pretty decent, some slight leakage between the tracks occasionally, but this is amazing being able to do this to fully mixed tracks with no previously available stems!
 
Further to my previous post though, the other stems off of the run through of Harvester actually sound pretty decent, some slight leakage between the tracks occasionally, but this is amazing being able to do this to fully mixed tracks with no previously available stems!

You can try replacing "demucs_extra" with "tasnet_extra" on the fifth step. That model should work slightly better for metal tracks.
 
Excuse my question if it sounds stupid but when i'm in Colab and executing the steps, there is a lot of stuff downloading.
Where are the files going ? On my computer ? On my google drive ?
 
Excuse my question if it sounds stupid but when i'm in Colab and executing the steps, there is a lot of stuff downloading.
Where are the files going ? On my computer ? On my google drive ?

It all happens in the cloud dude. There is nothing to worry about. If anything were downloading to your computer you would see a window on the screen of some sort indicating that.
 
Thanks guys, and it's true that step 2 is a bit long like 12 minutes here. Is there a way to process 2 or 3 tracks in a row without repeating the first steps ?
 
Thanks guys, and it's true that step 2 is a bit long like 12 minutes here. Is there a way to process 2 or 3 tracks in a row without repeating the first steps ?

As long as you are active when you go through it the first time for the day, you can do as many songs as you want. You just need to be doing something every few minutes so it doesn't close the connection.
 
Thanks guys, and it's true that step 2 is a bit long like 12 minutes here. Is there a way to process 2 or 3 tracks in a row without repeating the first steps ?

If you already processed one track and didn't close the tab, you can just change the name to the other track and don't have to repeat the steps.
 
Comparing demucs with Ultimate vocal remover...

UVR is way better, for making instrumentals

Demucs:
I noticed a lot of remaining vocals in the "drums" stem.
And it seems the background vocals are left in the synth stem.
 
Comparing demucs with Ultimate vocal remover...

UVR is way better, for making instrumentals

Demucs:
I noticed a lot of remaining vocals in the "drums" stem.
And it seems the background vocals are left in the synth stem.

Not in all songs. Background vocals are a must for me and that's even hit and miss. Just have to keep trying my friend.
 
[MENTION=26971]djtayz[/MENTION] will we see a stacked model update for this one?

There already is something similar, called "shifts", but it's not really a trained model, it's just slight variations in quality here and there and takes ten times more time to complete.
 
There already is something similar, called "shifts", but it's not really a trained model, it's just slight variations in quality here and there and takes ten times more time to complete.

Is there a command to change that can be typed in to try it out?