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Use QuadSine to generate up to four pure tones OR to annoy your friends, family, teachers, fellow students, or co-workers. Pick a sound between 20hz to 20, 000Hz, the range of average human hearing, using a simple, sliding control and selectively activate or deactivate tones. To put it differently: QuadSine may be used as a signal generator OR a digital noise maker. Physics and music teachers: Demonstrate interference, beats, and harmonics to your class.

Please Note: If you are unable to hear sound please be certain your speakers are turned on; this application respects your system-wide speaker settings.

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QuadSine iPhone Screenshot 1
QuadSine iPhone Screenshot 2

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Rated 4/5 based on 1 customer reviews.


4/5 stars

Great frequency generator!

Was looking for an app that would help trigger glass break detectors for residential alarm systems and this works great for that! Only negative is that the app will not save your last settings. Five stars when you can save!


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The information may be outdated (2011-03-27 19:22:54). For actual information go to iTunes

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