1. Of or relating to humanly audible sound. 2a. Of or relating to the broadcasting or reception of sound. b. Of or relating to high-fidelity sound reproduction.
NOUN:
Inflected forms: pl. au·di·os 1. The part of television or movie equipment that has to do with sound. 2. The broadcasting, reception, or reproduction of sound. 3. Audible sound. 4. A sound signal: lost the audio during the broadcast.
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