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The Primal Audio FM4 app models the DX synths

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Primal Audio FM4
News Primal Audio FM4

Virtual instrument for iPhone / iPod Touch / iPad from Primal Audio

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Young Danish company Primal Audio has released the FM4 app for iPad that emulates the Yamaha DX synthesizers from the 80s.

The Primal Audio FM4 app for the iPad is based on the DX synths original circuit modeling, which are then modified to recreate the original “dirty” sound.

The app offers the following:

  • 3 audio engines based on the Yamaha DX FM synths with 8 waveforms
  • 4 operations that can be set up via 8 routings
  • Up to 24 voices of polyphony (on an iPad Air ; 8 on the iPad Mini or iPad 2)
  • 2x, 3x or 4x Unison
  • Tempo syncable arpeggiator with patterns up, down, up-down and random
  • Microtuning with 8 different temperaments
  • 128 presets organized in 8 bank, import/export user presets via iTunes
  • Supports inter-app audio, MIDI and background audio (Audiobus is also planned)
  • The developer warns that the app crashes at startup on iOS 7.0.4 but works fine on v7.1 and later. A fix is expected soon.

The FM4 synth is available on the AppStore for the introductory price of $0.99 / 0,89 €. You’ll also find Primal Audio at www.primal-audio.com.


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