Tone Generator - An app and audio extension test signal generator

A handy signal generator utility app to create test tones. The app works stand alone but also includes an audio extension version to be used with compatible v3AU music software. The macOS version now works with Garageband and Logic Pro!

Generates the following signals:

  • Sinewave
  • Triangle wave
  • Sawtooth wave
  • White noise
  • Pink noise

The frequency and volume can be controlled with sliders or can be entered using the keyboard by tapping on the value. The macOS version audio unit now accepts MIDI note information to set note pitch.

Digitally created triangle and sawtooth waveforms contain alias artefact frequencies. These can optionally be filtered using the built in anti-alias filter.

All controls are smoothed so no pops or clicks are heard when changing values or the waveform type.


Ideal for testing audio equipment, science experiments, testing acoustics, testing hearing or even as a relaxation aid (using the noise modes)

Tone Generator app iphone screenshot

iOS screenshot

Tone Generator app macOS screenshot

macOS screenshot


Available on the App Store now.

Tone Generator iOS app icon

Tone Generator

For iOS

Download on the app store
Tone Generator macOS app icon

Tone Generator

For macOS

Download on the app store