S: (v) regulate (regulate%2:30:00::), modulate (modulate%2:30:01::) (fix or adjust the time, amount, degree, or rate of) "regulate the temperature"; "modulate the pitch"
S: (v) modulate (modulate%2:30:00::) (adjust the pitch, tone, or volume of)
S: (v) modulate (modulate%2:30:05::) (vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves))