Soundmasking

Sound Masking is the addition of sound created by special digital generators and distributed by normally unseen speakers through an area to reduce distractions or provide confidentiality where needed. Sound masking devices operate by covering up or masking unwanted sounds, similar to perfume that covers up other odors. This contrasts with the technique of active noise control, which attempts to eliminate the unwanted sound. Sound masking is used in homes, commercial offices, medical facilities, courtrooms, and secure facilities to provide speech secrecy.