audio

nouns

the audible part of a transmitted signal
"they always raise the audio for commercials"
audio, sound
an audible acoustic wave frequency
audio, audio frequency
a recording of acoustic signals
audio, audio recording, sound recording
the sound elements of television
audio
is a part of
a telecommunication system that transmits images of objects (stationary or moving) between distant points
television, television system
is a type of (narrower)
an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system
"spare components for cars"; "a component or constituent element of a system"
component, constituent, element