acoustic amplifier

acoustic amplifier

[ə′küs·tik ′am·plə‚fī·ər]
(electronics)
A device that amplifies mechanical vibrations directly at audio and ultrasonic frequencies. Also known as acoustoelectric amplifier.
References in periodicals archive ?
The simplest way to capture cardiac signals is by using condenser microphone attached to the acoustic amplifier, diaphragm, but this introduces noise which can interfere during the signal processing by microcontroller.
uk Make the most of your iPod with this acoustic amplifier made of mouthblown glass.
A noteworthy feature is you can continue to listen to music on your phone during the cleaning process through the sanitizer's built-in acoustic amplifiers.