Answer: muting

AnswerCrossword Clue
MUTINGToning down
MUTINGShutting off the audio
MUTINGMuffling
MUTINGSilencing.
MUTINGUsing a sordine.
MUTINGSilencing
mutingto muffle, reduce, or eliminate the sound of
mutingMUTE, to deaden the sound of
mutingtone down soften subdue mute a color