A reference to the operation or function of a loudspeaker or microphone, etc.: An electroacoustic process involves both electricity and acoustics (sounds) or the relationship of acoustic energy and electric energy.

The generation of a DC voltage in a crystal or in a metallic material resulting from sound waves traveling along the surface of metals: The sound engineering students were experimenting with the development of the acoustoelectric effects by using the different external tops of iron or steel surfaces.

A device for locating foreign objects in the human body: In surgery, an electroacoustic locator amplifies the sound made when an object is touched by a probe.

The electronic generation and processing of audio signals or the electronic processing of natural sounds, and the manipulation and arrangement of these signals via tape recorders into a finished musical composition: "Electro-acoustic music is recorded and edited on tape and the reproduction involves the use of loudspeakers."

Some electroacoustic music is created by arranging electronically synthesized sounds into a formal pattern with musical qualities which might resemble those of normal musical instruments.

A device that produces energy waves from electricity to sound or from sound to electricity: Examples of electroacoustic transducers include such devices as microphones, earphones, and loudspeakers.