traditional musical score was also added, which Krasinski justified in wanting audiences to remain familiar with watching a mainstream film, and not feel like part of a "silence experiment." Supervising sound editors Erik Aadahl and Ethan Van der Ryn worked on A Quiet Place. For scenes from the perspective of the deaf daughter, sound was removed to put greater focus on the visual. They also advised on organizing shots to reflect the creatures' perspective, like showing them noticing a sound, then showing what was causing the sound. Composer Marco Beltrami provided the sound editors music to work with in a way that would not interfere with the sound design throughout the film. In the film, creatures are blind and communicate through clicking sounds. Aadahl and Van der Ryn said they were inspired by animal echolocation, such as that employed by bats. The sound of feedback, normally avoided by sound editors, was woven into the story at a loudness level that would not bother audiences too much. Use of sign language The characters communicate in American Sign Language (ASL) to avoid making sound, so the filmmakers hired deaf mentor Douglas Ridloff to teach ASL to the actors and to be available to make corrections. They also hired an ASL interpreter for deaf actress Simmonds, so that spoken and signed language could be interpreted back and forth on set. Simmonds grew up with ASL, and she helped teach her fellow actors to sign. She said, "In the movie, we've been signing together for years and years. So it should look fluent." She observed that each character's use of sign language reflected his or her motivations: the father had short and brief signs which showed his survival mentality, while the mother had more expressive signs as part of wanting her children to experience more than survival. Krasinski said that Simmonds's character used "signing that's very defiant, it's very teenage defiant." Simmonds said that she suggested for the daughter to rebel rather than cower during a sign-language fight with her father. She also said that the script originally had the father sign "I love you" to his daughter at the end of the film, but she suggested for him to follow with "I've always loved you" to make up for their arguing earlier in the film. Producers Andrew Form and Bradley Fuller said that they initially planned not to provide on-screen subtitles for sign-language