[v] check the emission of (sound)
[v] set to a certain position or cause to operate correctly; "set clocks or instruments"; "regulate the thermostat"
[v] fix or adjust the time, amount, degree, or rate of; "regulate the temperature"; "modulate the pitch"
[v] shape or influence; give direction to; "experience often determines ability"; "mold public opinion"
[v] bring into conformity with rules or principles or usage; impose regulations; "We cannot regulate the way people dress"; "This town likes to regulate"