The purpose of this application is to experiment with sound using your smartphone's microphone. The application has three elements: an input, an output, and a control. The input element is the microphone, the output element is the speaker, and the control element is the button that allows you to pause and resume the experiment.

The experiment can be paused at any time, and you can also hide the captured screen by pressing the show / hide button. The frequency or the waveform can be adjusted using the time intervals, and the resulting sound waves can be calculated and compared with the previous sound. The frequency of the resulting sound waves can be calculated using the time intervals.