Focused on audible sound, as opposed to sight.

A sound, or a sound signal

sound

plural of audio

A tour where the information is given to the visitor through a collection of prerecorded speeches on a device that they carry around with them.

Of media, giving the option to listen to audio in two different languages.

A cassette designed to hold recorded sound or music.

plural of audio-typist

A stenographer who uses a tape recorder or similar device as the source of the text to be typed.

Alternative form of audiovisual