Simple audio-signal generator with mono or stereo mode uses analog output on the headphone plug.

Selectable parameter independent for each channel

- Mono or stereo mode

- Signal form : square, saw tooth, triangle, sinus

- Discrete frequencies from 250 Hz to 20 kHz in steps of 250 Hz

- Level selectable from 0 dB to -48 dB in steps of 3 dB

- Selectable phase-shift between the channels

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tested with :

- HTC Desire S android version 2.3.3