When you use the word «NO» to correct your dog, lower the tone of your voice. (vonziugermanshepherds.com)
The trailer portrays its deeply emotional story in low tones, but it's not without color and light. (collider.com)
The majority of infants will protest if they are struggling to breathe; however newborns, babies born prematurely or infants with low tone or developmental delays may not communicate their distress. (attachmentparenting.org)