Aftertouch For iOS Offers Three Axes Of MIDI Control

Aftertouch for iOS is a MIDI control app designed to unlock the musical potential of 3D Touch, turning your iPhone into a velocity- and pressure-sensitive controller.

Aftertouch sends MIDI note and control data to other apps, or to external hardware via the Camera Connection Kit or via Bluetooth MIDI. It also includes a built-in synthesizer so you can start making music immediately.

Grid Features:

  • Configurable grid dimensions and musical intervals between rows and columns
  • Configurable note display format (MIDI note number, musical pitch, or a combination of both)
  • Easy-access transposition buttons to move the grid by a semitone or an octave

MIDI Features:

  • Selectable MIDI output: choose between virtual MIDI destinations (other apps), hardware USB MIDI connections (via the Camera Connection Kit), or Bluetooth MIDI devices
  • Selectable MIDI Channel, or MPE (Multi-dimensional Polyphonic Expression)
  • Configurable CC outputs for X, Y, and Z axis finger movement (with support for Pitch Bend in the X axis, and Channel or Polyphonic pressure in the Z axis)

Other Features:

  • Built-in phase modulation synthesizer exhibits the default expression settings
  • Velocity curve editor for fine-tuning the velocity- and pressure-sensitivity to your musical style
  • Use the full screen to set the range of control parameters, or constrain them to only respond to movement within a single pad.

Note: Z-axis support is only available on devices with 3D Touch. Other devices still send X and Y axis data, and send a fixed note-on velocity value.

Pricing and Availability

Aftertouch is available for US $2.99 in the App Store.

8 thoughts on “Aftertouch For iOS Offers Three Axes Of MIDI Control

  1. ChordPolyPad already has the XY CC control and per pad MIDI control. The only thing iPad is missing as a MPE controller is Velocity control, but you can use other apps like MidiFlow to regulate it.

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  2. Fortunately ROLI have now released “Seaboard 5D” which is their original NOISE app for the Seaboard. Downloaded it yesterday and got everything back to normal 🙂 And all the sound-packs are now free for a limited time.

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  3. That seems to be taking its time… seems that expanding Apple’s 3D touch to an iPad’s screen size is a thorny issue. From my own testing as a developer, I suspect Apple use a small number of pressure sensors and extrapolate between them. There is visible cross-talk for example if you put several fingers close together on an iPhone 6S. The XY resolution of the touches is pixel perfect, but the resolution of the pressure sensors seems to be much less. You can see this quite easily if you use any 3D touch enabled app with good visualisation.

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