The phrase "to turn down the volume" means to reduce or lower the level of sound, typically by turning a knob or pressing a button on an audio device. Full definition
Women with PCOS get energy from food in a different way from others, and by turning down the volume on dieting, they are able to better hear what their bodies prefer. (juliedillonrd.com)
I started turning down the volume of baby monitor so those long couple of minutes until he fell back asleep were not so traumatic. (mommasociety.com)
Find out the warning signs so you know if you need to starting turning down that volume. (speaker.ninja)