Artificially created or recorded sounds used in films, theater, or games to enhance realism and atmosphere

stereo sound; a stereo system or component system that uses multiple channels to create a sense of depth and space

The scientific study of sound phenomena, such as sound waves, reflection, and resonance; also called [[声学|聲學|sheng1 xue2]] or [[音学|音學|yin1 xue2]]

An instrument used to measure the depth of water by calculating the time it takes for sound waves to travel to the seafloor and back.

a complete set of audio equipment, such as speakers, an amplifier, and a music player

stereo; sound equipment or installation

stereo component system consisting of a radio, record player, cassette deck, and speakers

pocket stereo; portable music player; walkman