Sonitus 4+

Frequency Generator

Bastiaan Verreijt

Designed for iPad

    • 2.3 • 3 Ratings
    • Free



Let's tickle some eardrums.

Generate frequencies in the audio range from 20Hz up to 20kHz. Test your hearing and compare with your friends. Use it to tune your instrument or simply annoy your neighbour's dog.

Test audio equipment using a fixed frequency or a frequency sweep that sweeps the frequency in a logarithmic scale from 20Hz to 20kHz.

The frequency can be selected by turning the knob or by entering the exact desired frequency using the keyboard.

Ratings and Reviews

2.3 out of 5
3 Ratings

3 Ratings

EuTeKe ,

It turns off

Can you make so it doesn’t keep turning off when the phone goes on stand by. I can’t keep touching the screen to keep it going, it’s not practical.

HlCunningham ,

Good tone generator

Good news: Works in landscape and portrait mode. Onscreen keyboard single frequency input.
Could be better: Allow range of frequency sweep to be entered from keyboard rather than just 20->20000 Hz.

App Privacy

The developer, Bastiaan Verreijt, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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