Introduction - If you have any usage issues, please Google them yourself
Digital electronic keyboard electronic keyboard features both for each scale corresponds to a specific frequency signal, digital signal generator by calling the specified frequency range of voice, so as to achieve the functions of a virtual keyboard interface includes A, B, ..., O A total of 15 keys, the mouse is pressed the sound, let go when the sound stops. At the same time can produce sine, square, triangle and other common digital signal waveform, and provides a graphical interface used to select the waveform, frequency, amplitude and phase. To the user specified waveforms and parameters of a corresponding digital signal, and then write the sound card digital signal buffer, and finally by the sound card plays the corresponding sound.