Turn the Sound Back on
This page is the CodyCross answer for the clue below from Science Lab, Group 314, Puzzle 1 (Alternating Current).
Question is: Turn the Sound Back on
and the answer is: UNMUTE
Word Meaning:
UNMUTE — (transitive) To restore the sound output (on a speaker or other audio device), having previously muted it.
Definitions from Wiktionary.