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Want to annoy your friends in under a minute? With Whistle! you can do just that and some other fun stuff too.


Whistle! is made for generating frequencies and noises which can really annoy someone. You can even choose the color of your whistle.

It also allows you to use some of it's predefined functions such as: Dog whistle (annoys dogs), White noise (frequency sweep), Real whistle (a real pre-recorded whistle) and many yet to come.

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What's New

Brand new look
Help screen
Custom color picker
Various bug fixes
Complete rewrite, updating will be easier and more often

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