It can be very calming for our pets to hear our voices. When I went to pick up my Molly after her teeth were cleaned, she quieted right down when she heard my voice. I only know this because I commented on how quiet she was, and I said I was surprised. The Vet Tech looked at me and said, "She hasn't beeen!" So, I guess my baby was quite naughty. They were ready for her to go home, so they wouldhn't have her whining and barking in the kennel.