Chirps ringtone


A chirp is a signal in which the frequency increases (‘up-chirp’) or decreases (‘down-chirp’) with time. In some sources, the term chirp is used interchangeably with sweep signal. It is commonly used in sonar and radar, but has other applications, such as in spread spectrum communications. In spread spectrum usage, SAW devices such as RACs are often used to generate and demodulate the chirped signals. In optics, ultrashort laser pulses also exhibit chirp due to the dispersion of the materials they propagate through. chirps_mp3.mp3 (69 downloads)

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