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Let’s Unmix Audio Unit by Hikaru Tsuyumine

WhiteWhite
in General App Discussion

https://apps.apple.com/app/id1631417268

Description:

Features

  • Extracts vocals, drums, bass, piano and other accompaniment tracks from source music
  • Audio Unit v3 Generator that works as a plugin on any host apps supporting AUv3 Generator such as AUM, AudioBus, apeMatrix and etc.
  • Supports Muiti-bus output that enables to output each separated stem to an individual bus and apply effects independently.
  • Loop playback
  • Sound volume control of individual tracks
  • It separates first 90 seconds of the songs during free trial. A single in-app purchase enables separation of the entire song and unlimited number of the songs for unlimited duration.
  • On memory track or file mapped track can be selected
  • Supported file formats mp3, m4a, wav, flac, aif etc.
  • Imports from Music Library or Files. (non-DRM protected source only)

Details:
Universal: Yes
Minimum OS version: 15.4
Rated: 0 based on 0 votes

Comments

  • supadomsupadom

    Crash on launch. Not looking good. iPhone 6s latest.

  • GavinskiGavinski

    I have to say I found results from the original standalone very iffy, mostly unusable. Not sure if it has been improved since, and I haven't compared it with similar tools

  • GavinskiGavinski

    Would've curious to hear how it compares to this https://moises.ai/products/ipad-app/

  • Sam23Sam23

    @Gavinski said:
    Would've curious to hear how it compares to this https://moises.ai/products/ipad-app/

  • cuscolimacuscolima

    Works perfect here. Very cool app!

  • echooperaechoopera

    Is it better than Koalas extraction process?

  • GavinskiGavinski

    Yes - but Moises has a free version too lol. Can separate up to 5 tracks a month i think, which would be plenty for many people.
    If you search the Moises thread there is also a link to some online tool that uses the same engine and is completely free.

    If Let’s Unmix is using that engine too, then it is definitely nice to have as an AU, but I would definitely check the free version first to see if the quality of separation marchers your expectations.

    @Sam23 said:

    @Gavinski said:
    Would've curious to hear how it compares to this https://moises.ai/products/ipad-app/

  • GavinskiGavinski

    @echoopera said:
    Is it better than Koalas extraction process?

    Oh that’s right Koala can also do that now too, does it also use the Spleeter (sp?) engine?

  • GavinskiGavinski

    From the other thread: And, a completely free version (of the Spleeter engine Moises uses) is online with support for 20 minutes, 5-stem, 50MB. This is far better than what’s available for free in Moises.
    https://splitter.ai/

  • DMfanDMfan

    @Gavinski said:

    @echoopera said:
    Is it better than Koalas extraction process?

    Oh that’s right Koala can also do that now too, does it also use the Spleeter (sp?) engine?

    Yes it does.

    When comparing the both they have clear audible artefacts on all stems, but IMO Let’s Unmix AU is a little better but it can depend on the song, the frequencies involved or just my hearing.

    But, on the other hand I don’t know what to expect. I guess if you are into making pro remixes for example, you work with clean original stems or use something better than Koala or Let’s Unmix(?).

    /DMfan🇸🇪

  • BenBen

    @cuscolima said:
    Works perfect here. Very cool app!

    Are you referring to the Let’s Unmix app or the other one mentioned above?

  • espiegel123espiegel123

    Doesn’t this app use the same technology (spleeter) that pretty much any app that has this functionality uses?

    @Gavinski : when you compared the results with koala, were you comparing the same source in both?

  • JumpercollinsJumpercollins

    Transcribe+ and DJay App AI mixer also does splitting.

  • BenBen

    Transcribe + and Ruffio also are very good but they’re not AU’s.
    As @DMfan said they all have artifacts, especially with bass in my experience.

  • GavinskiGavinski

    @espiegel123 said:
    Doesn’t this app use the same technology (spleeter) that pretty much any app that has this functionality uses?

    @Gavinski : when you compared the results with koala, were you comparing the same source in both?

    I haven't used koala to do this, I just acknowledged that it can do it. It was someone else who compared them, take a look above again 👍

  • espiegel123espiegel123
    edited August 2022

    @DMfan said:

    @Gavinski said:

    @echoopera said:
    Is it better than Koalas extraction process?

    Oh that’s right Koala can also do that now too, does it also use the Spleeter (sp?) engine?

    Yes it does.

    When comparing the both they have clear audible artefacts on all stems, but IMO Let’s Unmix AU is a little better but it can depend on the song, the frequencies involved or just my hearing.

    But, on the other hand I don’t know what to expect. I guess if you are into making pro remixes for example, you work with clean original stems or use something better than Koala or Let’s Unmix(?).

    /DMfan🇸🇪

    When comparing with Koala, did you use the same source for both?

    @Gavinski : apologies for attributing to you.

  • DMfanDMfan

    @espiegel123 said:

    @DMfan said:

    @Gavinski said:

    @echoopera said:
    Is it better than Koalas extraction process?

    Oh that’s right Koala can also do that now too, does it also use the Spleeter (sp?) engine?

    Yes it does.

    When comparing the both they have clear audible artefacts on all stems, but IMO Let’s Unmix AU is a little better but it can depend on the song, the frequencies involved or just my hearing.

    But, on the other hand I don’t know what to expect. I guess if you are into making pro remixes for example, you work with clean original stems or use something better than Koala or Let’s Unmix(?).

    /DMfan🇸🇪

    When comparing with Koala, did you use the same source for both?

    Yes I did!

    👍

  • espiegel123espiegel123

    @DMfan said:

    @espiegel123 said:

    @DMfan said:

    @Gavinski said:

    @echoopera said:
    Is it better than Koalas extraction process?

    Oh that’s right Koala can also do that now too, does it also use the Spleeter (sp?) engine?

    Yes it does.

    When comparing the both they have clear audible artefacts on all stems, but IMO Let’s Unmix AU is a little better but it can depend on the song, the frequencies involved or just my hearing.

    But, on the other hand I don’t know what to expect. I guess if you are into making pro remixes for example, you work with clean original stems or use something better than Koala or Let’s Unmix(?).

    /DMfan🇸🇪

    When comparing with Koala, did you use the same source for both?

    Yes I did!

    👍

    Maybe you could contact @elf_audio about the results. Maybe something needs tweaking.

  • WhiteWhite

    There's a video here:

  • jollyDodgerjollyDodger
    edited August 2022

    I'm using ripX for my stem extraction (not iOS). It's a hybrid algorithm far better than spleeter (what most apps use). Being able to manually separate out the AI mistakes and clean it up in one app is mainly why i use ripX.

    Demucs is the best algorithm atm free & easy to install on OSX/windows if you are command line friendly.. it's not on iOS also see this site

    The main problem I find with these tools is that when you extract a stem thats been EQ'd/compressesed/Panned/whatnot to sit in a mix, it then sounds messed up and washy on its own.. but its quite a trippy artifact. remember u.r.ai

  • PoppadocrockPoppadocrock

    free download but $4.99 for pro IAP.

  • PoppadocrockPoppadocrock
    edited August 2022

    How much can you do on the regular free version? I’ll try it soon but just curious.

  • royorroyor

    @Poppadocrock If you mean this AU version, It’s limited to the first 90 seconds of a song.. Otherwise it’s fully operational including the multi-out..

  • GavinskiGavinski

    @jollyDodger said:
    I'm using ripX for my stem extraction (not iOS). It's a hybrid algorithm far better than spleeter (what most apps use). Being able to manually separate out the AI mistakes and clean it up in one app is mainly why i use ripX.

    Demucs is the best algorithm atm free & easy to install on OSX/windows if you are command line friendly.. it's not on iOS also see this site

    The main problem I find with these tools is that when you extract a stem thats been EQ'd/compressesed/Panned/whatnot to sit in a mix, it then sounds messed up and washy on its own.. but its quite a trippy artifact. remember u.r.ai

    Exactly. These tools also generally don't do well with reverb heavy tracks. Again, they can be trippy and maybe useful for weird stuff, but most actual music won't sound that good when separated in this way.

  • pedropedro
    edited August 2022

    I’m sure you guys have heard of this, to me it sounds the best so far:
    https://github.com/facebookresearch/demucs

    web demo here: https://huggingface.co/spaces/akhaliq/demucs

  • PoppadocrockPoppadocrock

    @royor said:
    @Poppadocrock If you mean this AU version, It’s limited to the first 90 seconds of a song.. Otherwise it’s fully operational including the multi-out..

    Thanks for that. Cheers!

  • jollyDodgerjollyDodger
    edited August 2022

    @Gavinski said:

    @jollyDodger said:
    I'm using ripX for my stem extraction (not iOS). It's a hybrid algorithm far better than spleeter (what most apps use). Being able to manually separate out the AI mistakes and clean it up in one app is mainly why i use ripX.

    Demucs is the best algorithm atm free & easy to install on OSX/windows if you are command line friendly.. it's not on iOS also see this site

    The main problem I find with these tools is that when you extract a stem thats been EQ'd/compressesed/Panned/whatnot to sit in a mix, it then sounds messed up and washy on its own.. but its quite a trippy artifact. remember u.r.ai

    Exactly. These tools also generally don't do well with reverb heavy tracks. Again, they can be trippy and maybe useful for weird stuff, but most actual music won't sound that good when separated in this way.

    Yep.. so if you dont want to go full alien.. so far i've found it's about using it subtly by:

    • if you can eq / chop / gate it out.. do that instead or as well.
    • by keeping several stems together - i.e. work how what clashes when mixing two things together and just remove that damn cow bell.
    • mix it with something with a similar percussion structure
    • add reverb to whatever has less, and then some together.
    • use it to separate all the stems, chop them up on pads, maybe add a bit of backing synth to the sounds to fill out the flangy warbble and then put it all back together. FUN!
  • GavinskiGavinski

    @jollyDodger said:

    @Gavinski said:

    @jollyDodger said:
    I'm using ripX for my stem extraction (not iOS). It's a hybrid algorithm far better than spleeter (what most apps use). Being able to manually separate out the AI mistakes and clean it up in one app is mainly why i use ripX.

    Demucs is the best algorithm atm free & easy to install on OSX/windows if you are command line friendly.. it's not on iOS also see this site

    The main problem I find with these tools is that when you extract a stem thats been EQ'd/compressesed/Panned/whatnot to sit in a mix, it then sounds messed up and washy on its own.. but its quite a trippy artifact. remember u.r.ai

    Exactly. These tools also generally don't do well with reverb heavy tracks. Again, they can be trippy and maybe useful for weird stuff, but most actual music won't sound that good when separated in this way.

    Yep.. so if you dont want to go full alien.. so far i've found it's about using it subtly by:

    • if you can eq / chop / gate it out.. do that instead or as well.
    • by keeping several stems together - i.e. work how what clashes when mixing two things together and just remove that damn cow bell.
    • mix it with something with a similar percussion structure
    • add reverb to whatever has less, and then some together.
    • use it to separate all the stems, chop them up on pads, maybe add a bit of backing synth to the sounds to fill out the flangy warbble and then put it all back together. FUN!

    Some top tips there!

  • YannisHatziYannisHatzi
    edited August 2022

    A test article for some desktop stem separation software:

    https://musictech.com/guides/buyers-guide/best-stem-separation-tools/

    I have used LALAL.AI in the past for some vocal separation and I got better results (less artifacts) than Spleeter algorithm.

  • enkayteeenkaytee

    @YannisHatzi said:
    A test article for some desktop stem separation software:

    https://musictech.com/guides/buyers-guide/best-stem-separation-tools/

    I have used LALAL.AI in the past for some vocal separation and I got better results (less artifacts) than Spleeter algorithm.

    If anyone's interested, there's a new desktop stem separator from Aaron, the Stagecraft dev - $15 intro price. Uses the Spleeter algorithm and seems to work pretty well - there's an overview vid on the web page where he describes some of the limitations.
    https://www.stagecraftsoftware.com/products/simplestems/?coupon=MadCheap

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