At any time, someone could have a small video camera, audio recorder, or cell phone camera.
Could you imagine how amazing this video would be with audio???
And if you loved music, your goal in life was to be able to afford the best Harmon Kardon audio equipment.
"sound," especially recorded or transmitted, 1934, abstracted from prefix audio- (in audio-frequency, 1919, etc.), from Latin audire "hear" (see audience).