Sound masking is based on the principle of physics that when soft background noise is added to a room, the conversations and noises in the room are less understood. The term “white noise” is widely used when referring to speech privacy or sound masking systems, although today sound masking systems produce sounds that are more effective and less obnoxious than the “hiss” of true white noise.
Sound masking accomplishes oral privacy is achieved by making conversations more difficult to be understood. In other words, if you are in a conversation with someone else and other people in the room can’t understand what you are saying, we have effectively established oral privacy.Sound masking “fills in” the sound spectrum around you with barely perceptible low level noise, so that speech is cannot be understood. It’s actually sounds like an office air conditioning background noise, so that you don’t notice it. When in use, sound masking sounds like a gentle “whooshing” sound.