Telephone calls clear as a bell

Research News Special Issue /

Smartphones can do almost everything you want, but their poor voice quality is still a vexing issue. Fraunhofer researchers have helped develop a new codec to banish this problem. Their solution raises voice quality to an unprecedented level – making it sound as natural as if the person you’re calling is standing right next to you. That’s because, for the first time, the entire audible frequency spectrum is transmitted.