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Audio-2-MIDI

I just checked the new features in Live 9 and found new so-called 'Melody- or Drums-to-MIDI feature'. From the demo audio, it sounds amazing.
Is there an equivalence on iPad.
I know ThumbJam can do audio-to-MIDI trick. But what I experienced was that reaction is slow and mono only.

Comments

  • Poly pitch to MIDI is a powerful trick that few do well on desktop computers, let alone iDevices. I don't know of any apps that can do it. Would be nice to be wrong though. :)

  • edited January 2013

    Thumjam is pretty fast in its audio->midi transformation. What device are you trying this on?

  • @logictree Audio Midi ios app from SecretBaseDesign works decently well. The next update should be audio bus compatibel....

    ThumbJam can convert audio to midi?? That's totally new for me....can somebody explain how it works?

  • It's that record button that has this note symbol on it. If you press that, Thumbjam will detect incoming notes via Audio (from them mic or Audiobus).

  • Jejeje that was pretty quick and easy! How come i didn't see it until now?? Shame on me ;)

    Incredible....it seems to work very very well and really fast and acurate!!! It shows again how amazing ThumbJam is!!!

  • I'm on iPad 4th gen. When I say the reaction is slow I mean some of the patches, not all of them. That's weird. Acoustic Guitar is too slow to use. Some patches response pretty well, like Cello and E Bass. But accuracy sometime is not really good. Furthermore, fast notes always drop out.
    I'm not a keyboard player. So Audio-to-MIDI feature could be pretty handy to me. I tried singing to mic and trigger Cello patch. Wow, it is really fun.

  • You have to take into account that some sound presets have their own attack time, which might slow them down to you even though the notes are recognised faster than the sound is coming out.

  • Bear in mind that a decent input signal level is important and that higher notes are generally quicker to be analysed than low ones.

  • @PaulB hadn't thought of that (higher pitches vs lower pitches) but it totally makes sense.

  • Just some reference info about ThumbJam's support for monophonic pitch tracking:

    To turn on input pitch tracking, find the button with the microphone and notes, which is at the bottom of the sidebar on iPad, or at the bottom of the auxiliary sidebar (toggled by hitting the sidebar button with the 3 small icons on it) on iPhone/iPod.

    The controls you see pop up are Thr - threshold level for pitch detection trigger of note; Vel - velocity based on level of audio input, turn it all the up the way for no velocity sensitivity; Gli - glide amount between notes.
    The button with the stairstep icons let you toggle between played notes locked to scale, chromatic notes, or free which will match your pitch exactly. The octave controls there let you set an octave offset to play the instrument with.

    It can be a little twitchy with staccato attacks, I will hopefully be able to calm it down in future updates.
    Currently it won't let you do the pitch tracking in the background, but this will change in the next update.

  • For full disclosure: another new app that does the audio->midi only is Sonuus G2M. Their tracking seems pretty good, a little less twitchy on transient attack input, but is missing things like transpose, or scale locking features. It does work in the background and can control TJ, or other apps via virtual midi. It broadcasts to all, so you have to be careful with midi channel control.

  • @sonosaurus Great news for the next updates! Thanks for confirming.

    Sonuus G2M seems to track better guitars that human voices. Can you confirm that please?? Or maybe another goog alternatives that can do audio to midi?

  • edited January 2013

    @Sonosaurus: It looks to me as if the current version of Sonuus G2M allows selection of MIDI channels but doesn't actually provide for Omni. So, unless there's a bug, broadcasting to all shouldn't be a problem. Or have I misunderstood and you mean something else?

  • You just have to make sure you have omni input turned off or channels carefully selected on apps you don't want to be triggered by it. Enlightened iOS MIDI controller apps let you choose specifically which virtual midi ports you actually want to send to.

  • OIC. I had misunderstood. Thanks for the clarification.

  • are there any apps that excel in converting audio to midi? how is midi morphisis?

  • Trying to convert audio to midi is a very hard task, if you add polyphony to it, it gets even harder. If you want to play midi with guitar and you want proper response and polyphony, you need to use some dedicated piezo mics on each string designed to convert the sound to midi. But if you can live with it making some mistakes here and there, sometimes not tracking properly(it helps to play higher strings on guitar and transpose the midi for lower notes), polyphony only sometimes getting it right etc. There are apps for it, i havent tested thumbjams audio to midi conversion, but i have heard its at least as good as others. If the reaction is too slow, you buffer settings are most likely wrong, but i doubt it can track very fast playing accurately.

  • So i tried running iKaossilator through audiobus (2) into ThumbJam for audio to midi and iKaossilator started glitching out like crazy, the patterns going at lightning fast bpms and crashing. Ableton link was turned OFF everywhere. And yet when i removed ThumbJam from the chain, it worked fine. What the hell could this be?

  • @db909 said:
    So i tried running iKaossilator through audiobus (2) into ThumbJam for audio to midi and iKaossilator started glitching out like crazy, the patterns going at lightning fast bpms and crashing. Ableton link was turned OFF everywhere. And yet when i removed ThumbJam from the chain, it worked fine. What the hell could this be?

    Sounds like maybe you've created a midi loop. Disable sending in ThumbJam and receiving in iKaossilator (if applicable). Just a guess.

  • edited May 2017

    @wim that's what I thought but I checked everything and number one iKaossilator isn't supposed to send or receive anything except link or wist and everything was turned off. The iKaossilator screen actually turned white for a sec. it's weird

    Anyways, workaround is to export iKaossilator stuff as audio, then use AudioShare to pipe it into ThumbJam for audio to midi conversion which ThumbJam does great by the way.

  • @LeonLeroy said:
    are there any apps that excel in converting audio to midi? how is midi morphisis?

    Midimorphosis tracks just fine, although it's crashing for me at every g note played, @SecretBaseDesign - also it's built into Infinite Looper, and about the same (nice) precision as Thumbjam.
    There's the Sonuus G2 app, but haven't heard anything abut it.
    Now, Midi Guitar 2 is excelling in tracking, and is polyphonic, priced ad 30 quids, although it can be run for a few minutes in (free) test mode.

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