Generate sync pulses over iOS audio out.
Objective-C Objective-C++ C Ruby
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iOS app that generates sync pulses over the audio output and supports tap tempo.

Tested working with:

  • KORG units with 'sync' inputs such as SQ-1 and volca.
  • Teenage Engineering Pocket Operator series.
  • Moog synthesizers with "single clock advance" tempo mode.

TerribleSync also supports sending OSC messages to a specific host/port on your local network, but only if you're building from source (for now). This can be configured in the bundle's info.plist. Messages take the form /ts/step {consecutive integer}.