I don't believe they can respond to other then the resonant frequency of the specific piezo element at hand. They are pretty 'sharp' in bandwidth and as most/all are ultrasonic in frequency, well above audible sound frequencies.
Lefty
I don't believe they can respond to other then the resonant frequency of the specific piezo element at hand. They are pretty 'sharp' in bandwidth and as most/all are ultrasonic in frequency, well above audible sound frequencies.
Lefty