Stria Multilevel Interactive Sound Synthesizer

striaapeSoft has released Stria – described as a ‘Multilevel Interactive Sound Synthesizer’ for iOS.

“Stria is the title of a very important composition by John Chowning,” notes the developer, “This computer music piece rapresents the manifest of Frequency Modulation technique applied to audio synthesis, invented by Mr. Chowning himself.”


  • Up to 240 Frequency Modulation Oscillators or simple Wavetable Additive
  • Five Spectral Pitch Grid Generators (Geometric, Harmonic, Fibonacci, Scalar, Temperated)
  • Event Pitch Jittering
  • Event Envelope
  • Oscilloscope and animated XY Pad
  • Effects chain: Doppler, Chopper, Glitch Gen, Sync Grain, Spectral Arpeggiator, FDN Reverb, Dynamic Compressor/Expander
  • Save unlimited Snapshots number
  • Pad interpolating snapshots
  • MIDI/Network Control Change input
  • Connection Control: Midi, Scrub Y and Accelerometer X/Y
  • Capture Master Audio Output
  • Run Audio in Background
  • Embedded User’s manual
  • Up to 25 built-in snapshots presets
  • Sonoma Audio copy and paste
  • Dropbox supports
  • Audiobus compatible

No audio or video demos are available yet for Stria on the developer’s site.

Stria is available in the App Store for US $8.99.

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

5 thoughts on “Stria Multilevel Interactive Sound Synthesizer

  1. got it but i am waiting for some tutorials 😉
    to busy to read manuals
    nice sounds but I cant control it yet

  2. It isn’t multitouch? I may wait on an update then, I love the Apesoft’s iDensity & iPulsaret but they both have really fiddly controls..

  3. not multitouch that i can see/use. maybe there’s some way to make it so after reading the manual.

    still, the sound possibilities are very cool.

    i too have ipulsaret and there are some great things about it. but i really wish the controller routing for it and this new app was not global. they really should make it be on a per-patch basis. (hopefully they’ll read this and update it so that it is).

    i’ve held off on idensity because it seems like the same engine as ipulsaret with a different control skin and i don’t really relish buying the same basic app at that price . . . if/when it goes on sale, i might.

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