Sound Masking

Sound masking is ambient background sound engineered to match the frequency of human speech for greater speech privacy.
Adding sound to a space actually makes the space seem quieter. It sounds counter-intuitive but it’s true. This is because the added sound reduces the intelligibility of human speech. When you can’t understand what someone is saying, their words are less distracting — in fact, you probably don’t even notice them.
Sound masking makes a building seem quieter by raising the ambient noise level of an environment and making speech noise less intelligible and therefore less distracting. When you can’t understand what someone is saying, their words are less distracting — in fact, you probably don’t even notice them.

Sound masking is an ambient sound, similar to the sound of airflow, that’s specifically engineered to the frequency of human speech you can target conversational distractions and make them less distracting. Sound masking does not cancel sound or eliminate all speech noise in an environment; it simply reduces how far away conversations can be heard and understood by others, which we call the radius of distraction.