Dolby Labs will demonstrate its Dolby Pro Logic II surround sound technology.
Approved as one of three surround sound formats for the Ibiquity Digital system, it allows surround sound programs to be transmitted simultaneously over digital radio and analog FM signal paths. The company says with Dolby Pro Logic II, the surround soundfield remains intact, even while tuning HD Radio stations, during signal fades or other periods of blending to analog.
The demonstration will show surround programming over the full signal path, from ingest through HD Radio transmission to consumer receiver.
HD Radio content encoded in Dolby Pro Logic II can be stored, edited and broadcast as a traditional two-channel signal. The content is decoded into five-channel surround sound by the listener’s Dolby Pro Logic II receiver in the home or in many car audio systems.
The company says 46 million of its surround decoders are in use in homes and cars.