Photo-Theremin For iOS, iAbyssal

Developer Alfredo Aliaga shared this video demo of iAbyssal, a photo-synthesizer / noise machine for iOS.

Based on the Abyssal analog photo-synth released by AtomoSynth in 2008, iAbyssal is a virtual analog synthesizer that can be controlled by light using your iOS device’s camera. 


  • Uses your device frontal camera as a light sensor for altering pitch, filter frequency and resonance.
  • “Photocell” (frontal camera) calibration functionality for adjusting its sensitivity to different environmental light conditions.
  • Can be used in low-light environments thanks to an inverse calibration feature.
  • Features one oscillator with square and sawtooth waveforms.
  • White noise generator.
  • Two low frequency oscillators (LFO) which can modulate various parameters of the oscillator, noise generator and filter.
  • One Filter with low pass and high pass mode and resonance (peak) control.
  • Adjustable delay effect.
  • Preset memory including many factory presets for using as a starting point and easily create your own sounds.
  • Inter-App-Audio and Audiobus support (as generator unit) for using it with your favorite audio apps.

Pricing and Availability

iAbyssal is available now for US $4.99.

If you’ve used iAbyssal, share your thoughts on it in the comments.

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