ITASCA, Ill.--(BUSINESS WIRE)--Knowles Corporation (NYSE: KN), a market leader and global supplier of advanced micro-acoustic solutions and specialty components, today announced that it has extended the expiration of its previously announced offer to acquire each outstanding share of common stock of Audience, Inc. to 12:00 midnight (one minute after 11:59 p.m.), Eastern Time, on June 30, 2015. In order to facilitate a third quarter closing and to avoid the practical difficulties associated with