Meaning

noun the audible part of a transmitted signal

noun an audible acoustic wave frequency

noun a recording of acoustic signals

originClipping of audio-. Cognates include Sanskrit आविस् (āvís, “manifestly, evidently”) and Ancient Greek αἰσθάνομαι (aisthánomai, “perceive, notice”) whence English aesthetic.

Etymology from Wiktionary, CC BY-SA 3.0