KVR Audio

tequilafunk · Post by **tequilafunk** » Thu Sep 25, 2025 8:51 pm

Hi KVR Audio!

I just launched a free web app that can pull vocals or instrumentals out of full tracks. Most of the existing options I tried either cut you off after short previews, rely on outdated tech, or throw up paywalls.

This one is built on Demucs (Meta’s AI model), so the results are cleaner and it can handle longer audio.

What it does:

Higher quality separation compared to Spleeter and similar free tools
Works with WAV, MP3, and FLAC
Up to 10 minutes / 100 MB per file
No daily usage cap - just one active job per person at a time

I’ve been experimenting with ways to run this affordably, and finally made it sustainable. Hopefully it’s helpful for producers looking to sample, remix, or strip vocals.

Link: Free Acapella Extractor

mixyguy2 · Post by **mixyguy2** » Thu Sep 25, 2025 9:06 pm

This is excellent, huge thanks! It'd be cool if you made it into a plugin at some point.

tequilafunk · Post by **tequilafunk** » Thu Sep 25, 2025 9:09 pm

mixyguy2 wrote: Thu Sep 25, 2025 9:06 pm This is excellent, huge thanks! It'd be cool if you made it into a plugin at some point.

Thank you for the feedback!

Good idea, I should learn how to code in C++ to create VST/AU plugins at some point

seangm · Post by **seangm** » Thu Sep 25, 2025 9:19 pm

Tried it, worked well. If you could add an option to extract keyboard parts that well I would be very grateful.

tequilafunk · Post by **tequilafunk** » Thu Sep 25, 2025 9:25 pm

seangm wrote: Thu Sep 25, 2025 9:19 pm Tried it, worked well. If you could add an option to extract keyboard parts that well I would be very grateful.

Thank you! I actually have a free stem splitter in the works. It’s pretty basic for now, but you could give it a try. It doesn’t have separate "keys" track detection, but you might find keyboard parts in the "other.wav".

No_Use · Post by **No_Use** » Thu Sep 25, 2025 9:32 pm

Ultimate Vocal Remover can do Demucs v4 stem splitting too, but yours is still a good option for people that don't want to install it for some reason.

tequilafunk · Post by **tequilafunk** » Fri Sep 26, 2025 11:20 am

No_Use wrote: Thu Sep 25, 2025 9:32 pm Ultimate Vocal Remover can do Demucs v4 stem splitting too, but yours is still a good option for people that don't want to install it for some reason.

Thanks, that was the goal – to not install anything.

UVR is based on Demucs, correct! So if you're using Demucs locally you're not losing anything

mixyguy2 · Post by **mixyguy2** » Sat Nov 22, 2025 3:09 am

This isn't working for me atm FWIW - it seems to get the file OK, but says "Waiting in queue" and just spins and spins. Have tried several different (and not very big) files

tequilafunk · Post by **tequilafunk** » Wed Nov 26, 2025 12:20 pm

Just fixed it! Seems like it went down for a bit.

mixyguy2 · Post by **mixyguy2** » Tue Dec 02, 2025 1:56 am

Thank you!

Aloysius · Post by **Aloysius** » Wed Dec 03, 2025 4:24 am

I've used this before. It's very good. Thank you.

lingyai · Post by **lingyai** » Mon Dec 08, 2025 7:07 pm

Might this be able to split a stem of 2+ vocals singing harmony into individual singers? I recognise this is very hard to do. Would love something like that though, could help me figure what they are doing. Polyphonic Melodyne is hit and miss here

mixyguy2 · Post by **mixyguy2** » Wed Feb 25, 2026 10:28 pm

Another request that might be unrealistic: is it possible to have an option where it only takes out the lead voice but leaves backing vocals?

Aloysius · Post by **Aloysius** » Thu Feb 26, 2026 11:17 am

You could try a mid-side plugin.

I created a free Acapella Extractor