Digital piano keyboard based on PVDF piezoelectric film

Digital piano, is an electronic musical instrument for synthesizing traditional piano timbre. With the development of digital signal processing and music synthesis algorithm, the music performance of digital piano is rivaling the traditional piano. This paper use a novel piezoelectric material-Polyvinylidene Fluoride (PVDF) to capture the strength, velocity and duration of keystrokes to substitute the hammer and string of traditional piano. Timbre with different intension, duration is synthesized according to the keystroke information captured by the piezoelectric material.