About

DTMF (Dual-Tone Multi-Frequency) tone generator, with a 4×4 digital keypad. It includes continuous audio generation and the option to export generated tones as .WAV files. Includes a built-in FFT spectrum analyzer that allows the user to view the frequency (20 Hz to 22 kHz) of the generated tones, using the peak hold function, logarithmic scaling, and a cursor to measure the frequency values and output level in dB.

Telegram: https://t.me/fwdlps Github: https://github.com/InfLps