aTone

aTone is a precise tone generator with a simple, clear interface. Four different waveforms can be played, and the frequency can be controlled by dragging a slider, tilting the device or typing a value in. Tones can easily be saved for quick playback in the future. Use it for testing headphones or speakers, finding the upper limit of your hearing, irritating your friends, or any other use that takes your fancy.


Key Features
A beautifully simple interface lets you easily set a frequency, play it back and save it.
Tilt the device to the left or right to increase or decrease the frequency.
Type in a frequency by touching the readout at the top of the screen.
The range of frequencies covered by the slider can easily be altered, and the slider can be set to adjust the frequency logarithmically.
Dual window interface for tablets.
Four different waveforms for playback: Sine, Square, Sawtooth and Triangle.


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