sine wave generator

App this app to generate a sine wave
Generation mode is three

1.Touch
     Generate a sine wave to calculate the frequency and volume from the position of the touch the screen.
get 5 touch events at the same time.

2.DTMF
Generating a tone signal to be used by the phone.

3.Multi
Generating a tone signal to enter the frequency volume.
The default setting is C / E / G.