Sound masking is a popular noise management strategy used in various environments such as call centers, offices and medical facilities. According to research, it does indeed work effectively. Sound masking systems emit a subtle, ambient background sound engineered to the frequency of human speech, which helps to muffle speech sounds. This facilitates a balanced acoustical environment where extraneous noises and conversations are less disruptive, thereby promoting concentration and productivity. It's important to note, however, that the effectiveness of sound masking can vary depending on the specifics of the environment and the quality of the sound masking system used.