A sound idea for the future

A device was engineered to convert sound into electrical energy using a speaker operating in the reverse direction of its manufactured purpose. An Arduino system was used to measure voltage output, with accuracy validated using a 3V battery. Generated voltages were systematically assessed across a range of amplitudes for white noise and for fixed sound frequencies from 150 to 100,000 Hz. The voltage increased exponentially with sound amplitude, reaching 14.7 mV at 115 dB for white noise. Lower frequency sounds yielded greater voltages. These findings have major implications regarding the potential to exploit sound as a source of renewable energy.



  • Justin Khairy

Année : 2022

Région : Montreal Regional Science & Technology Fair (Sec/Coll)

Type de projet : E

Classe : INT

Categorie de projet : EE

Volet : Secondaire

Niveau scolaire : Secondaire 3

École : Loyola High School

Prix et distinctions

Finale Québécoise


  • Prix Énergie Hydro-Québec

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