HOWL: A simple formant synthesizer
Swift Ruby Objective-C
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HOWL.xcodeproj
HOWL.xcworkspace
HOWL
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README.md
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README.md

HOWL

HOWL is a simple formant synthesizer for iOS, written in Swift and built using the AudioKit framework. It makes synthesized vowel noises.

Screenshot

HOWL screenshot

Links

Building

Just open HOWL.xcworkspace in Xcode and hit build (as of the time of writing the latest version is Xcode 9.2).

2.2 wishlist

  • Implement male/female adult/child controls
  • Note labels
  • MIDI input support
    • kAudioUnitType_RemoteMusicEffect
  • 3D touch
  • Rebuild the phonemeboard/keyboard using Metal/SpriteKit/OpenGL/EZAudio
  • Try out slightly bigger fonts for the iPad Pro

Just a quick note: HOWL itself is a paid app, but I provide the source code free of charge as a learning resource. I ask that you kindly don't put clones of HOWL in the App Store.