CMI App for iPad and iPhone

Developed in Australia during the ’70s and ’80s, the Fairlight CMI (Computer Musical Instrument) was the first commercial sampler and screen-based rhythm sequencer. Today every sampler, digital synthesizer, sequencer and audio workstation can trace its lineage back to this legendary machine. Now you can have, in your pocket or on your iPad, a piece of history developed by Fairlight staff who worked on the CMI in the ’80s.

You can Buy and download the Pro App from the App Store, or if you are not sure you want the Pro features, you can get the Player App and play original Fairlight CMI sounds and sequences straight away. Then if you want to create your own masterpieces you can use the in-app upgrade process to get all the Pro features listed in the Features page.

You can find an audio montage of CMI App sounds, made by a Fairlight customer, on SoundCloud.

Feature comparisonFeedback, FAQ and Support

Video Guide 1
Features Overview
Video Guide 2
Player vs. Pro
Video Guide 3
Voice Sampling

Accepts input from Core MIDI devices. You can even accept MIDI from some devices that don’t support Core MIDI, such as the Akai SynthStation and the Line6 MidiMobilizer, using an app called MidiBridge.
A great way to get quality audio into the new sampling feature in version 1.1 is via iRig Mic, and the perfect support for your iPad is iKlip.

Compatible with iRig MicCompatible with iKlip



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457 Responses to CMI App for iPad and iPhone

  1. avatar kenny balys says:

    ios 11, midimittr app to rx midi, akai lpk25 wireless keyboard on an iphone 5s

    -> works perfectly

    i got the pro version and am quite pleased

    thanks for making my boring iphone into a joy

  2. avatar Michael G says:

    I’m trying to loop some of my samples and am not able to set the start and end points without getting a pop each time the loop iterates. I understand why this is happening (the start and end points of the wave don’t match in terms of amplitude). I’ve tried going to Page 6 to edit the wave. The technique I use is to create a sort of rorschach wave (mirror image) by selecting the whole wave (all segments) the do a copy, reverse, add and fill. Then I can set the start and stop to the matching points at each end of the wave. This works occasionally, but not often. The REAL solution would be to add a cross fade feature to the loop start and end points similar to what Izotope’s Iris2 does. Any chance we could get this in the CMI app? This will go a looong way towards making this a useful sampler (for me anyway). 🙂

    • avatar Michael G says:

      BTW, the kind of loops I’m trying to create are long tones like horns, voices and whistles. I want to get the transient at the beginning, then loop to sustain a note without the pop.
      Sounds like whole words, or staccato notes are no problem.
      Overall, I really love the app! Thanks for developing it so us less than rich and famous musicians can create with the CMI.

  3. avatar Michael G says:

    I’ve been playing with the Pro CMI App for quite a while now and have a pretty good understanding of how to build patterns and songs. I am however frustrated with trying to work with polyphonic notes on a given track. When a given step has more than one note, I can only see and edit (pitch, velocity and duration) one of them. This makes building a polyphonic track by inserting notes practically impossible. Any chance this will be addressed?

    • avatar Michael G says:

      Maybe what I’m experiencing is a bug in that I’m not actually supposed to be able to have more than one note at a step? But somehow, the app is letting me insert two notes at the same step on a given track, and I can edit the pitch/velocity/duration of the last note I inserted. And, it does actually play both notes…. until I exit the app and come back in. Then, only one of the notes remains at that step. Weird!

    • avatar Thomas Bisshop says:

      The CMI app is an emulation of the CMI II, which has eight monophonic channel cards. The Page R screen is also an emulation of the CMI II Page R interface, and only works for monophonic channel cards.
      One of the amazing things about the 1980s is the amazing sound that so many musicians could get out of eight monophonic 8-bit channels.

      • avatar Michael G says:

        Right, I get that now. I think I’ve uncovered a bug as described above. Henceforth, I will only put one note per track/step. 🙂

        Thanks for releasing this amazing and fun app!

  4. When I heard the Pet Shop Boys Please album, i was blown away. After doing research of the equipment they used to make the album. i learned that they had used the Fairlight CMI and the price was $125,000 way over my budget. I just learned that you have a software available for the iOS, unfortunately i’m not a fan of Apple products. Will you have a Windows or Android version available in the future, i would buy a copy. If they are underdevelopment, i would like to test it for you. thanks

  5. avatar Journey Green says:

    Why does the app cost so much money? I have the non-Pro version, but even then, it cost $10. And I have to pay an extra $40 for the pro. Why does it cost so much?

    • avatar Thomas Bisshop says:

      There was a great deal of work involved in developing and maintaining this app, and only a small number of sales to amortise the development costs.

      • avatar Michael G says:

        What if you were to lower the cost of the Pro and non-Pro versions (say $5 and $20 respectively) and offer the sample libraries as in app purchases. You could group the libraries into packs such as CMI-IIx Bass, CMI-III Percussion, etc. for $2 a pack. I’d bet you’d see a higher volume of sales because more people would be inclined to purchase the app.
        Just a thought…
        BTW, I do love the app a lot! 🙂

    • $49.99 is pocket change considering that the actual fairlight CMI machine cost $125,000 back in the 80’s.

      • avatar Michael Glanton says:

        No doubt, but it’s 2018. And $50 for an app that isn’t updated very often, and just barely works with apps like Audiobus with VERY limited functionality… I mean, it’s almost usable for live performance… almost. For now, it’s just kinda fun to play with, but frustrating because it just doesn’t play well with other apps. And there’s no reason I’d use it for recording when I have Arturia’s CMI emulation which DOES have all the capabilities everyone wishes this app had. So at the end of the day, it’s a very expensive toy at best.
        Now, IF you were to release an update that makes the app 100% Audiobus 3 compatible, we could do keyboard splits(zones). All of the sudden, this app becomes a powerhouse in my live iPad based setup.
        Of course, releasing updates means you need funding for development. And, you could raise funding by stimulating sales with a more palatable price for the base app, and in-app purchases. I know it sounds crazy, but all the cool kids are doing it!
        Anyway, good luck!

  6. avatar Frank Ramrath says:

    Hi what is witzh the new ios 11 64 Bit support. do have a plan for it?

  7. avatar Doug says:

    Does the cmi app output midi to the keyboard? I.e. Will it play sound on my digital piano or just on the iPad ?


  8. avatar nick says:

    hi Peter,i hef the korg nano key 2 en the novation impulse midi key broads,wen i play on the key broad i get no sound form the keys en wen i enable midi the
    cmi app crash .what i do wrong please ?

    • avatar Marco says:

      Me too!! No MIDI response from external session/controllers, it can be played from internal keyboard only, please fix it!

  9. avatar mikael svensson says:

    Any chanse of a VST version ?

    • avatar Thomas says:

      Sorry, Mikael, there’s not much chance of that in the foreseeable future. Our main focus is implementing the last of the CMI II features and fixing bugs in the app.

      • avatar Richard C says:

        Speaking of bug fixes, is there an update in the near future? For the most part the app runs well, doesn’t crash often, which is nice. but it has a weird condition that happens semi-regularly, especially during a big session were I’m giving the app a good workout: Say you’re making a pattern, you edit some stuff, change a drum here move a hi hat there, then step back or have it play from the beginning. It’ll show that it changed patterns, but it’ll play the one you just edited, usually without the edits. You have to go to disc and reload the song again, turn on editing again. A total hassle.

        it does it even when you edit a pattern and press play just to hear the pattern. Imagine having to reload the song EVERYTIME you change any little note or drum. No fun.

        Also, any word on additive synthesis? Page 6? Excited to try it out.

        So to be clear, I dig this instrument. A lot. It really delivers that crunchy lo-fi 80’s sample sound. I even deal with having to build patterns with no copy-paste feature (that said: plz add a copy-paste feature lol) but some updates would help with the day-to-day workflow. I’d even PAY a few bucks for a chunky update that addresses the above

        Thanx a lot Thomas ?

        • avatar Thomas says:

          Richard, yes a new release is in the pipeline. With new MIDI functionality and many bug fixes. We hope to release it in the next couple of weeks. I hope to have the multi-pattern audio problem fixed in that release.
          Page 6 is already implemented. I think you mean Page 5 for additive synthesis. Yes, it’s on the list. The original plan is still valid: implement all CMI II functionality before branching out into new features. Such as (sadly) copy and paste.

        • avatar Goetz says:

          First a very big Thank you for this app!

          But I also run into that no sound is playing issue,
          e.g. Setup a new instrument,
          Select a new voice from disc from the CMXII Discs, check the play button to check that sound -> no audio out.
          Loading that preset and return to the instrument voice selection and trigger sound via music keyboard -> no audio out..
          One has to switch once to the Voice page with the waveform overview and trigger the keyboard and voila,
          now audio out works.

          I appreciate to work with an original Fairlight environment, therefore it would be very nice if those issues could be adressed.

          Thank you very much for your great product,

  10. avatar paul says:

    HI!! love the app! however is there no way to export WAV files?!?! I would LOVE to export the PageR sequences i create, especially the Individual parts. Wtihout a proper export function, its basically just a toy, and cannot be used within a studio. Any suggestions? I purchased the pro, and no i am not talking about exporting the samples i created. im talking about exporting the individual tracks from page r. or at least the page R sequence as a whole.

    • avatar Thomas says:

      Paul, to quote Kath & Kim, “I have one word for you:” Audiobus. There are many different recording and studio apps that will accept Audiobus input from the CMI app. Many more options than just exporting a WAV file.

  11. avatar Christian says:

    This App bring my dream near to own a Fairlight.I Loved this Instrument over 30 years.
    Can you tell us,what about upates in the Future?
    Sorry for my english. 🙂

  12. avatar nick says:

    Hi peter,is it possible maybe to implicate fx page in the app i like that what the cmi 30 hef thank u,maybe one day i winn the lottery en i buy the cmi 30 lol.

  13. avatar Journey Green says:

    The app is amazing! It’s got the good sound the original Fairlight had. The only problem is the price. The app costs $10, and the pro version costs $50! It’s gotta be reduced! Otherwise, the app is fine, and it goes well with Garageband as well.

  14. avatar Kenneth Barr says:

    Hi, I can’t figure out how to change the Voices to other instruments on the App: Symkick, Clap5, Tamb2, Basslap1, DirtClav and soo on. Please help?

    • avatar Thomas says:

      For the default instrument or one you created yourself, use Page 3 > Edit > channel number > Edit voice.
      You can’t edit built-in instruments.

  15. avatar Andrew Piatek says:

    The Vogel CMI app on the iPad is the only reason I got an iPad. It’s a wonderful app, with beautiful interface (sans the standard Apple widgets) and one of the most desirable sample libraries. $50 for the app is like giving it away for free. However, Apple infrastructure is so rotten, that I decided to sell my iPad. Is there a way to import the Vogel CMI sound library as wav, then convert it to say Roland S-series sample libary? I know it’s stealing, and I am against stealing, I would very much like to pay again for the CMI sound libary alone to have it on my Roland sampler. I just want out from Apple infrastructure, I think it’s reasonable.

  16. avatar nick says:

    Peter i mean English sorry.

  17. avatar nick says:

    Hi peter will in the future the app get fx en lfo’s effects ,i love the app i wise i could buy the cmi 30 but to much money .En what do you think about the new iPad pro it hef a light pen like the cmi 30, sorry for mi eagles i em dutch bye nick.

    Ps i hef the pro app version.

  18. avatar Mark says:

    Would like to see this please for a windows system

    • avatar Sérgio Frias says:

      I agree ,a pc/mac port would be great,
      to extend the market, i’m sure sales will be much higher,for example i’m not willing to invest in a ipad/iphone just to have this App. I hope that in the future the classic adc / dac emulation will be implemented,since the sounds we love from the past came from the limitations of the first units used by artists like Peter Gabriel , Kate Bush,Duran Duran etc. this sound can only be acheived by a emulation (accurate or approximation).

  19. avatar Richard C says:

    Hey Peter and company. Love the App. I’m going to write many many songs with this for my band on my iPad 3. But i do have A question/suggestion: any chance of upping the voice amount in each instrument to 16 or more in the future? It’s really the only limitation that makes things difficult. I’m going to just record multiple 8 voice parts to my sampler and then layer them that way for the time being. But it would be great to just build patterns with more than 8 voices in the app itself. Again, I love this instrument. I feel like Peter Gabriel in 1985 everytime I use it!

    • avatar Thomas says:

      Richard, glad you love the app. Yes, we would like to add more channels, but it won’t be soon. The problem is that the user interface is hand-crafted to look and function like the original CMI, and there is no easy way to expand it on the smaller screens.
      We would also like to build the missing CMI II functionality first, such as time signatures, MIDI control inputs and additive synthesis. After that we’ll get to other things on the list such as more channels. Most likely we’ll do that so as to remain compatible with the .IN instrument files, which only allow 8 voices– so to expand a song to more channels, we’ll have multiple instruments.

  20. avatar Mike Ross says:

    Very cool. How do I interface the keyboard from my original CMI I? 😉

    (Actually half-serious; the CMI keyboard is an RS232 data stream IIRC so… anyone make a Lightning-RS232 adapter?!)

    • avatar Thomas says:

      Mike, assuming you are talking about the music keyboard, what you need is an RS232 to MIDI converter, there are a few around and you can build your own. The CMI app responds to Core Midi, so any device that can input MIDI to iOS will work. That includes docks as well as USB MIDI connected via the lightning USB or camera adaptor.
      Have fun!

  21. avatar nick says:

    can you export fairlight cmi iOS app the voices to logic x.

    • avatar Thomas says:

      Voices you have created yourself can be exported as CMI .VCX files, but I doubt Logic X could read those. You can always send all CMI audio output to other apps via Audiobus.

    • avatar Thomas says:

      There are a number of BLE MIDI devices coming out around now. As far as we’re aware, they work just fine with the CMI app. We’re still waiting for delivery of one to test that.

  22. avatar James says:

    Heard about the new Ableton Link ? Would be cool to synchronise cmi with other applis

    • avatar Thomas says:

      sorry for the slow reply– silly season break. We do plan to add Ableton Link at some stage, but first we have to implement clock in and out, which is on our list of desirable features.

  23. avatar Pelto says:

    Do you have plans to make Android version?

    • avatar Thomas says:

      Sorry, Pelto, we have no plans for that. The CMI App relies heavily on Apple’s Core Audio and Core MIDI libraries.

  24. avatar Paul Grace says:

    I would LOVE this as a AU plug-in to run inside Logic Pro…If you look at the success of Vintage synth software companies I’m sure that the Fairlight would be very popular. Cheers

    • avatar Thomas says:

      Paul, we’d love that too. The trouble is that it’s a big task to translate an iOS App into an AU plugin, well outside the developer resources we have available at present. I’ve added your vote for that.

  25. avatar PikaSka says:

    Where can I download .rs files?

    • avatar Thomas says:

      The Pro app already contains all the .RS files available to us. If you mean where can you get new .RS files, Google would be your friend. A while ago we raised the idea of a public CMI file exchange, but had an underwhelming response.

  26. avatar Handy says:

    Great app, we’ll check the Player App first.

  27. Andy, not in the near future. It is a huge job to convert an iOS app to a VST plugin. Cartel de santa

  28. avatar Allan says:

    I’m new to iOS, so this question may seem sophomoric, but how does the app accept MIDI input if not for the now-obsolete Midi Mobiliser and SynthStation?

    • avatar Thomas says:

      Allan, the CMI App will accept MIDI from any Core MIDI compatible input, including physical devices (there are a lot of those around), WiFi MIDI and Bluetooth LE MIDI. You can still use the MIDI Mobilizer and SynthStation if you use an app like MidiBridge to convert their input to Core MIDI.

  29. avatar K says:

    Is it possible to sample at a 8bit14k from the built in mic and is it possible to import wav or aif files with such rates
    I try to look for this but couldn’t find anything on it.

    • avatar Thomas says:

      Hi there. Sorry, it is not yet possible to sample 8 bit 14K in the CMI App. However, you can import a WAV file of pretty much any sample rate and bit depth. Just make sure you set the native pitch of the file so that it plays at the correct pitch.

  30. avatar Ronald says:

    After updating my app to 2.0, the waveform page has a button that says “update to pro”. But I already have the pro version…..? Any ideas ?

    • avatar Thomas says:

      Ronald, that’s a bug, already fixed in 2.0.1, which is now released.

      • avatar Tom Bitondo says:

        Hi Thomas,
        My app was long upgraded to Pro but several features are still disabled, for instance, the ability to record songs.
        Cheers from the USA ???

  31. avatar Wim says:

    Can you tell me what the “goodness control” of the Fairlight does? Are ther sound examples on the web and will it ever be included in the pro version of the app?

    • avatar Thomas says:

      The 30th Anniversary CMI has a Goodness control that allows a range of sound qualities, from CMI I through CMI II, CMI III and beyond. It uses some very powerful DSP hardware to achieve this, so it is not possible to do it in an iPhone. The iOS app supports CMI II and CMI III quality, and the upcoming Page 6 feature allows choice of sample quality slightly beyond these when creating a new voice.

  32. avatar timex70 says:

    Hi folks,
    are there any plans to improve the “Page D” specs?
    the waveform drawing from
    segment 1 to 128 with merge / morphing function would be nice….
    as for me for a few bucks more

    • avatar Thomas says:

      The bad news: the CMI App’s Page D is already more powerful than Page D on the original CMI II, and we don’t plan to extend it.
      The good news: we soon plan to add Page 6 to the CMI App, with all the features of the original CMI II Page 6.

  33. avatar App says:

    Fairlight CMI sounds on my iPad!! Yess!! Thank you!

  34. avatar Andy Harrison says:

    Hi will the fairlight app will ther be a vst version to add to my studio program thanks andy

    • avatar Thomas says:

      Andy, not in the near future. It is a huge job to convert an iOS app to a VST plugin.

      • avatar BoWi says:

        Not as huge as it is with the real stuff? Saying that as an “user” not familiar with C; C+; C++ or whatver you are using! I’m certainly looking forward for a VSTi plug-in as well as an stand-alone-version!

  35. avatar Trevor says:

    Hi Guys,

    Undo command in case of accidental deletion when editing the patterns – will this ever be available?

    • avatar Trevor says:

      I think it would be a great idea if we had the ability to shake the device to get the undo feature. I know I can undo and redo the things I type in the ios’s notepad.

      • avatar Thomas says:

        Trevor, we don’t have any plans to implement undo in the near future. Sorry about that. I’ve added your vote for this feature. On the iPhone, shaking the device shows or hides the on-screen keyboard.

  36. Hey guys! Thanks for all you do!
    I’m wanting to setup a dedicated Fairlight/iPad station in my studio and about the only feature I haven’t seen mentioned that I would LOVE to see is aftertouch support. A simple switch on the sound programming page to determine whether a given sound responds to it, and a flexible routing option for what aftertouch would do to each sound would be MOST welcome.
    Thanks for listening!!

    • avatar Thomas says:

      Michael, thanks. I’m glad you’re enjoying the CMI App.
      I’ve added your vote for aftertouch. It’s one of many voice features such as full ADSR that we plan to do eventually. But before then we have to do a few things like iOS 8 and Audiobus 2.1 compatibility.

  37. avatar Matthew says:

    The number one thing I would like to see is more of the CMI III library included. If I’m not mistaken the app currently comes with the entirety of the “factory” IIx library and portions of the III library. It’s all great. The III samples sound especially great. If there are more factory III samples I would love to get them.

    I’m working on my first OS X/Cocoa app and know what a challenge this kind of development can be. Hats off to those building/maintaining this app.

    • avatar Thomas says:

      It’s a great idea, and it’s on our long-term roadmap, but there are some things holding us back. The current CMI App is an emulation of the CMI II, which had single-voice single-zone channel cards. It can only read CMI II voice files, not the multi-zone CMI III files. We had to extract a single voice from each of the source III files to use in the app.
      A second smaller problem is that the III files are huge. We couldn’t include them in the app, but would have to develop a download-later function.
      Despite all this, it will happen… one day.

  38. avatar Rich Stamvik says:


    Super app (and good value for money, I remember seeing the original thing in Denmark a looong time ago, it was a bit costly… but very cool)! Now then, how does the app work with Akai’s SynthStation49?


  39. avatar Daniel Jozsef says:

    Hey guys,

    I checked back after more than a year, and the rebranding of the app as Peter Vogel CMI, and was a bit disappointed that no new major features have been added.

    Are you still interested in improving the application? 🙂 I thought the whole point of the rebranding was to mark the app as a new take on the spirit of the CMI as opposed to just an emulation.

    I’m really, really missing waveform drawing. It’s something I’ve waited for since the app first came out, to be honest. 😉

    • avatar Thomas says:

      Daniel, sorry things have been a bit slow. But we expect 2014 to be an exciting time with products and updates from Peter Vogel Instruments.

  40. avatar Bill Rayner says:

    I would like some more editing features in pageR. I the pro app. For instance, I,d like the “grab”and “copy”functions available like the cmi pageR.
    Are any of these planned for future teases?
    All the best

    • avatar Thomas says:

      Bill, there are a whole raft of functions in the CMI II that use keyboard commands. Since the iPad doesn’t have a keyboard, they are hard to replicate, and would probably be a bit clunky with lots of popup menus.
      However, I’ll add your vote for this and see what we can do in the future.

      • avatar Daniel Weigert says:

        Actually, most any Bluetooth keyboard will work with the iPad, so it isn’t that far fetched an idea to extend the functionality. By the way, the camera connect kit, with a USB midi connection works reasonably well for a physical musical keyboard. Do you have any recommendations for a decent keyboard, that won’t break the bank?

  41. avatar Andrew Piatek says:

    I must say that the CMI app is absolutely incredible. This is THE killer app for me, in a sense that it justifies the use of the iPad for me. Without the CMI app, I wouldn’t have gotten myself into the iPad at all, because I am the ’80s guy, and none of the new products or technologies really excite me. Now, with CMI, Cubasis, Auria, and about a dozen of synthesizer apps, and of course the Audiobus, I must say I gave into the iPad craze. But once again, the CMI app has by far my favorite interface, amazing sound library, and super easy sampling. I mean, I just sampled C4 of my Roland D-50, and the sampled sound is playable across entire 5 octave keyboard, and it sounds amazing. In one word, incredible!!!

  42. avatar Daniel Bento says:

    Are there any plans to release one day the CMI App on other platforms ? I have bought the App (Pro Version) and use it happily on my iPhone, but would love to have it working also on my PC, under Windows… That’s just a suggestion!
    BTW, as few other posters, I’m also having trouble with stuck notes and crazy octave changes on the touch screen keyboard… I have iOS 7 and on that environment it seems sometimes the App can’t tell the difference between when one is trying to change octaves and when one is simply playing one note on the already chosen octave! Cheers

    • avatar Thomas says:

      it is very unlikely that we would develop the CMI App for Windows or Android, due to the lack of suitable audio software libraries. It is possible that we would develop it in some form for Mac OS, but not in the near future.
      Sorry about the keyboard bug, which was still in 1.5.9 submitted to the App store due to a misunderstanding. The workaround for the moment is to tap the octave selector instead of swiping it, so the C key is always at the left.

  43. avatar rich says:

    Hi, apart from the page 3 crash in the latest version that you know about, I’m also getting stuck notes on the ipad, after moving around on the octave selector and pressing some keys. I hear the button press sound effect, a note becomes permanently held down on screen and it can never be pressed again. This is using touch screen not a midi interface. Seems to be connected to pressing a key during or shortly after dragging the octave selection area. it is kind of an obnoxious bug!

    • avatar Thomas says:

      Agreed, it’s an obnoxious bug. You have to quit the App to unstick the keys.
      The workaround is only to tap on the octave selector, rather than drag it, so the C key is always at the left.

    • avatar Thomas says:

      Actually, this bug is already fixed in release 1.5.9, probably due for approval in 5 or 6 days.

      • avatar rich says:

        thanks for the quick response, looking forward to the update!

        as a further bit of feedback, the in-app news that says an update is coming says ‘in about a week’ doesn’t say when the news was posted 🙂 so I think putting a date on the news posts would be nice

      • avatar rich says:

        I’m sorry to say this bug is not fixed in 1.5.9. I’m on ios 6 if that helps. Keyboard is still unusable (tested on iphone4c and ipad2), and tapping does not stop the problem occurring

  44. avatar 1.5.7?? says:

    I am chomping at the bit for 1.5.7, as I use the CMI app on an original iPad (5.0), and it is unusable now. When is 1.5.7 (non pro) coming out?

  45. avatar Jeff says:

    How is PCM playback on the app handled as opposed to the original hardware? As far as I know, the original CMI had no interpolation but maybe something else like a static LPF to remove digital noise? Basically I am wondering if there is any difference in sounds and if so, why.

    • avatar Thomas says:

      Jeff, in the original CMI, each channel card converts its samples directly from digital to analogue at the pitch-appropriate sample rate, thus avoiding sample-rate conversion, and also has a tracking low-pass analogue filter that automatically filters out harmonics of the sample rate, thus avoiding sample-rate squeal.
      In iOS, everything is digital right up to the Remote IO Unit, which in most cases runs at a sample rate of 44.1 KHz. So digital sample rate conversion has to happen somewhere, regardless of pitch (the CMI II sample native sample rate is 14080 Hz). The CMI App does not have a tracking filter, but relies on Apple’s standard Core Audio sample rate converter, which appears to use a weighted-average convolution process, thus avoiding sample rate squeal.
      No, it doesn’t sound exactly the same as the original CMI hardware, but it is very close– and so far nobody has said that they can tell the difference.

  46. avatar Michael Carnegie says:

    I have been wondering for some time when virtual midi would be available for the CMI app. This morning I discovered by accident that the CMI app does receive midi in data sent from Music Studio or Cubasis. Is this an undocumented feature? How do you route midi in/out data to specific apps?

    • avatar Thomas says:

      Michael, that’s a very good question. The answer is, unfortunately, ‘sort of.’
      The CMI App receives MIDI messages from Apple’s Core MIDI framework. These messages can come from a number of sources, including:
      1 – external hardware
      2 – WiFi MIDI sessions
      3 – other Apps that send MIDI.
      Unfortunately, there is no standard way to do number 3, and ‘Virtual MIDI’ is a marketing term, not a technical term. So far very few developers have agreed on exactly how to do this.
      One App that routes MIDI is ‘MIDI Wrench,’ one of the Jack for iOS Apps. I haven’t tried it since it first came out, but back then I couldn’t make it work for me.
      It’s possible that the Audiobus guys might include MIDI in their App, and there are new APIs in iOS 7 for routing audio and MIDI, so the future is looking bright.
      But for now, the only way to know if it works is to try it. That’s why we haven’t documented this feature.

      • avatar Michael Carnegie says:

        Thomas, thanks for your reply. Unfortunately the Audiobus guys have recommended not to upgrade to iOS 7 yet – it tends to break some audio apps. As far as Apple’s new audio and MIDI routing goes, we’ll it doesn’t from what I’ve read to date.

        My temp solution is to create a new instrument in the CMI app for each project with the specific voice/s and MIDI channels for that project. Hopefully this will work.

  47. avatar Daniel Weigert says:

    Version 1.5.4 Pro has Audiobus initialization issues with iOS 7. I’m hoping a quick fix is coming, as I want to sink my teeth into this!

    • avatar Thomas says:

      Daniel, this is very disappointing. The CMI App worked well with the iOS 7 betas, but is broken with the released iOS 7. We will fix it ASAP.
      Too late for you, but Audiobus recently sent an email to all its customers suggesting they NOT upgrade to iOS 7 yet because of all its audio bugs.

  48. avatar Trevor says:

    I think it would be a great idea if an undo function was available.

    • avatar Trevor says:

      oh yea, and the pattern reps – when all are deleted, there’s no way to really edit the song. accordingly There should be an option to restore it. Maybe that’s where the undo should be handy…?

      • avatar Thomas says:


        the ‘delete the last step’ bug is now logged. Thanks for reporting it. I’ve also added your vote for undo. What sort of things would you like to see in undo?

        • avatar Trevor says:

          when you inadvertently hit the clear all notes. Today I found myself hitting this by accident without any way to recover the information that I previously lost 🙁

          I know it auto-saves all the changes, and maybe that’s part of the problem. Maybe there should be some kind of a save button instead.

          • avatar Trevor says:

            can we have a way to lock the writing of some of these sequences without erroneously editing them? Maybe when we slide on them to Delete them, we can see Delete or Lock

          • avatar Thomas says:

            Trevor, iOS is not like a desktop OS. Almost all iOS Apps save changes immediately, and do not have a save button. I am certain that if we did NOT save changes immediately, we would get many more complaints from customers who lost their changes because they forgot to save them.
            However, undo would be very useful, and is on our list of features we would like to add.
            My suggestion, if you want some level of undo, is for you to duplicate your song before any serious editing session.

          • avatar Trevor says:

            thanks. Yes, I now realize the limitations of the iOS. I am a new user to it.

  49. avatar John says:

    Money was no object. I had forgone purchasing the pro app earlier or toying with the player app because I feared it would be complex( as sometimes is the case by working with older synth models). I found this app very straight forward. It is easy to use and the included sounds are incredible as well as the sampling and sound and instrument editing capabilities. I was sitting around one day and simply could no longer resist it. I am very happy with this app. This app is an amazing tool. As with any synthesizer app it is trial and error for a period of time. I am trully amazed.

    • avatar Thomas says:

      John, thanks for the kind words. It’s great to know that our labour of love is valued. We’d appreciate it if you (and other happy CMI App customers) could write a review on the App Store.

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