Stria FM Synth For iOS Updated To Version 2.0


apeSoft has updated Stria, its interactive FM software synthesizer for iOS.

Here’s what’s new:

  • New: UI Skins
  • New: Second FM Pad
  • New: Control Manager LFO
  • Support for 14 bit MIDI nRPN
  • Improved Hyper Vectorial Pad
  • Inter-App Audio fixed
  • DSP on/off fade
  • Save Control Manager in the Presets
  • Optimised for iPhone 6 and 6+
  • iOs 8.3 SDK
  • Audiobus
  • Midibus 1.27
  • Bugs Fixed

Here’s a video demo:


  • Audiobus and Inter-App Audio support
  • Up to 240 Frequency Modulation Oscillators or simple Wavetable Additive
  • Five Spectral Pitch Grid Generators (Geometric, Harmonic, Fibonacci, Scalar, Temperated)
  • MIDI Pad With Scale Grid
  • Effects chain: Doppler, Chopper, Glitch Gen, Sync Grain, Spectral Arpeggiator, FDN Reverb, Dynamic Compressor/Expander
  • Snapshots Presets Morphing Pad
  • Control Manager LFO for Parameters
  • Midibus, Virtual Midi and Network: 14 bit NRPN controllers
  • Capture Master Audio Output
  • File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy
  • Post Fx Chain: Doppler, Chopper, Out Of Range, Sync Granulator, Spectral Arpeggiator, Reverb FDN, Dynamisc Processor

Stria is available now, for US $7.99, in the App Store.

If you have used Stria, leave a comment and let us know what you think of it!

4 thoughts on “Stria FM Synth For iOS Updated To Version 2.0

    1. Love little bits like this. And love silent homage’s like the name of this app. Thank you!

      For those interested, a SkyNet search (often referred to as ‘Google’) turned up an academic paper on the piece by Chowning.

      “Proceedings of the XIV Colloquium on Musical Informatics (XIV CIM 2003), Firenze, Italy, May 8-9-10, 2003

      Stria is a piece fully generated by the computer, with the creation of all the parameters needed to play each sound, starting by a certain number of input sessions, elaborated by algorithms. This paper contains the partial synthesis of the analysis of this piece; the analysis was conducted starting from the original algorithms, the listening of the piece and a few literature documentation. Direct communication with J. Chowning was important too.

      Haven’t read the whole thing but lots of interesting stuff on scanning.

      The piece itself is on SkyNet Broadcasting (found at

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