SAN FRANCISCO--(BUSINESS WIRE)--Dolby Laboratories, Inc. (NYSE:DLB), the developer of the AC-4 standard, today announced partnerships with VIZIO and Sony Visual Products to drive the adoption of Dolby® AC-4 in televisions for next-generation broadcast systems and streaming Internet content. A powerful new audio format in the Dolby Audio™ family, Dolby AC-4 enables the most efficient delivery of premium consumer experiences to TVs and other consumer devices. Its practical, scalable, and flexible