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ReStem 2 for iOS (drum stem separator) AUv3 now available!


ReStem 2 has just been approved on the App Store — the same live separation engine as the desktop version, rebuilt for iOS.

Feed it a stereo drum recording or a full mix and it comes apart into seven stems as the audio plays: kick, snare, hi-hat, toms, ride, crash, and everything else. No render step, no waiting, no account — and nothing is ever uploaded. All of the separation happens right on the iPad.

Live separation — press play and the kit comes apart in real time, each stem on its own channel strip with volume, mute, solo and metering.

Per-stem effects — a look-ahead noise gate and a transient shaper on every stem, so you can clean up bleed and put the crack back into a snare one drum at a time.

Live MIDI out on the whole kit — every stem sends notes as it plays. Toms are sorted into floor, low, mid and high automatically; Hi-hats come through as closed, pedal or open.

The Separation Map — watch each drum light up as its own cluster of stars while the track plays.

ReStem works as an AUv3 plugin inside AUM, Cubasis, Auria, GarageBand or Logic for iPad.

It runs on any iPad with an A12 chip or newer — iPad Pro (2018 and later), iPad Air 4+, iPad mini 6+, and iPad 10+.

Available for $29.99 USD: https://apps.apple.com/app/restem-2-drum-stem-separator/id6796161777

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Comments

  • The desktop version has been getting rave reviews. Quite excited about this one.

    @WaveMachineLabs have you validated it’s the same quality on the iPad?

  • It's exactly the same quality as the desktop version's Realtime mode (the desktop version has three modes - one realtime and two offline).

    Rim

  • OMFG. Didn't expect this and wanted the ITB version bad. This is a must buy.

  • Is there going to be a sale? 🙂

  • I'm not planning any sales in the near future.

  • @WaveMachineLabs said:
    It's exactly the same quality as the desktop version's Realtime mode (the desktop version has three modes - one realtime and two offline).

    Rim

    No chance of bringing the best offline quality to iOS as an option? I don’t mind how long it takes to render 🙂

  • That's a possibility at some point. The main issue is the storage space (and also download time), and the processing time would be significant as well. It's something I'm considering though.

    Rim

  • @WaveMachineLabs said:
    That's a possibility at some point. The main issue is the storage space (and also download time), and the processing time would be significant as well. It's something I'm considering though.

    Rim

    Can I test it for you? 😎

    (I’m serious)

  • Sure :) Let's see how well this version does first before I invest more time in a pro version.

    Rim

  • McDMcD
    edited 4:44AM

    It’s great to see WaveMachineLabs putting out new products… I’m eager to see a Lyra Sampler broken out as a standalone offering.

    I’m going to buy this release just to encourage additional offerings.

    REVIEW: I loaded up LumBeats Pop Drummer and fed the output into ReStem 2.
    I played with taking drum parts out of the mix just to test separation. Worked as advertised. Then I directed the MIDI out of ReStem 2 into OneShot and tested the groove with a variety of OneShot drum kits.

    1. As a final test, I loaded up a drum solo I found on YouTube.
    2. Recorded a screen capture of YouTube video.
    3. Imported the screen capture into Koala to use the Import Video capability.
    4. Loaded the Koala app into AUM and fed its audio out into ReStem 2 and tested the separation when a good grove drummer is working out… worked as advertised again. You can just isolate all the Tom parts for example then mix in Hi-Hat, Kick, Crashes, etc so a loop builds just as a drummer might break a groove down to its components.
  • @WaveMachineLabs said:
    Sure :) Let's see how well this version does first before I invest more time in a pro version.

    Rim

    OK that’s fair. Best of luck with it. This is great to have on iPadOS.

  • @Meek3 said:
    Is there going to be a sale? 🙂

    Cheeky git 🤣

  • Finally a pathway for a Drumagog replacement

  • @gusgranite said:

    @Meek3 said:
    Is there going to be a sale? 🙂

    Cheeky git 🤣

    🙂 not saying it’s not worth it but 35 euros is a lot of money
    Its 40 dollars.

  • @WaveMachineLabs said:
    It's exactly the same quality as the desktop version's Realtime mode (the desktop version has three modes - one realtime and two offline).

    Rim

    Incredible news! A thousand thanks for bringing this jewel to iOS. You can’t imagine how happy I am!!!

  • @Meek3 said:

    @gusgranite said:

    @Meek3 said:
    Is there going to be a sale? 🙂

    Cheeky git 🤣

    🙂 not saying it’s not worth it but 35 euros is a lot of money
    Its 40 dollars.

    Oh for sure but asking a developer when the sale’s going to be on day one of the release? Ha good luck with that.

  • It's not $40, it's $29.99

    Rim

  • @WaveMachineLabs said:
    It's not $40, it's $29.99

    Rim

    Shows 35€ in europe… also not saying it isn’t worth it as it looks amazing but for me as a dabbling musician it’s an investment I don’t think I need atm

  • @WaveMachineLabs said:
    It's not $40, it's $29.99

    Rim

    A price set as $29.99 in the US store is €29.99 in Europe stores normally, which is the equivalent of almost $35 usd. But yeah, this app is actually showing as €35 in the German AppStore, for example, which is equivalent to almost $41 USD.

  • Yeah, I'm with Meek, 400 SEK is a lot for such a niched app and you know gusgranite, intro/release sales are not unheard of (I know Meek asked for a future sale, still..). In fact I think they're more common than not offering one.

    I'm not paying this but it's a cool app to have available for iOS.

  • @WaveMachineLabs said:
    It's not $40, it's $29.99

    Rim

    35 € = 40 $

  • @WaveMachineLabs
    Is it possible to bring it to iPhone?
    Best wishes

  • Ahhh... math :p

  • Sir, did you overlooked my message? 😉

  • edited 11:47AM

    @Mateusz It's possible, I will look into the feasibility.

    Rim

  • I love how you can do the realtime mode and the midi <3

    The online reviews shows your offline mode gives much better detection quality.
    I hope so much you will add the two offline modes.

    Many musicians do not have the latest M5 iPad pros, but a lot have bougth M1/M2 with huge disk space and plenty of ram (making music takes space :D ).
    Machine time in offline mode is not critical at all for me.

    It would be so cool, first use the realtime mode to see if it looks promissing and then run your best offline mode to do its magic.

    Thanks for bringing ReStem 2 to the IPad :)

  • Thanks. In my own testing, I find that realtime mode is quite close to the offline modes in the desktop version. The main differences start to be heard when there's a lot of extra bleed from other instruments - the offline modes deal better with those. But for most drum tracks, realtime mode works quite well and is indistinguishable from the offline modes.

    Rim

  • @Pxlhg said:
    Yeah, I'm with Meek, 400 SEK is a lot for such a niched app and you know gusgranite, intro/release sales are not unheard of (I know Meek asked for a future sale, still..). In fact I think they're more common than not offering one.

    I'm not paying this but it's a cool app to have available for iOS.

    How is it a lot for a niche app? I don’t understand that conclusion. Generally, I would expect to pay more for niche innovative products.

    This plugin costs $100 on the desktop, we’re getting it on the iPad for $30 or $40. So that sounds like an OK proposition for to me. The one thing I don’t like is I think it should have included offline rendering from the get go as we all want the best quality and it bugs me when the iPad release gets a lower quality port from the plugin but the developer has addressed that. That’s the one thing holding me back TBH.

    I think what you mean is ‘it’s a lot for an iPad app compared to the market’? That’s probably more accurate. But even then, there are many examples where it isn’t (look at FabFilter, IK Multimedia, Fugue Machine, SWAM, etc). Lots of examples around this price point.

  • Great to see WML back!

    I have one question:

    Does the plugin support multi-out? So we can apply further processing to the stems?

  • edited 2:03PM

    @WaveMachineLabs said:
    The main differences start to be heard when there's a lot of extra bleed from other instruments - the offline modes deal better with those.

    Other instruments (bass, guitar) or kit pieces?

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