# Generating sound

Objective

Generate sound from electrical signals, using a Piezo-electric buzzer. Digitize sound and measure its frequency. Use the Piezo buzzer or any other source of sound like a tuning fork.

Procedure

- Enable A1, and its analysis

- Set WG to 1000Hz, change it and listen to the sound.

Discussion

When you change the frequency of the voltage that excites the Piezo, both the frequency and the intesity of the sound changes. The intensity is maximum near 3500 Hz, due to resonance. The resonant frequency of the Piezo buzzer is decided by its size and mechanical properties.