System and method for preventing overhearing of private conversations in public places

摘要

How to prevent overhearing of private conversations in public space is disclosed. Detecting the social activity of people in the public space, assessing the social situation, to suit the social situation, which is the evaluation, the method of sound masking and / or sound at the desired location and a step of adapting the extent of absorption. Station airport is required to prevent overhearing of private conversations, city, park, office, casino, railway, clubs, bars, schools, libraries, restaurants, coffee shops, and methods, such as the shopping center It may be useful in public environments.