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DAB 5.1 Surround Live Premiere at Medientage 2004
October 20, 2004Fraunhofer Institute for Integrated Circuits IIS introduces its novel Spatial Audio Coding technology, which enables 5.1 Surround Sound for Digital Audio Broadcasting DAB. The Bayerische Rundfunk (BR) and Bayern Digital Radio (BDR) broadcast the first 5.1 program over DAB live on "Bayern 4 Klassik" during the Medientage event in Munich. A DAB surround receiver prototype was developed and integrated in a passenger car by the Panasonic Automotive Systems Europe GmbH.
Spatial Audio Coding SAC is a new technology developed by Fraunhofer IIS in collaboration with Agere Systems. This generic surround extension can be associated with almost any perceptual audio codec while remaining fully backward compatible to stereo or even mono broadcasting. The achieved audio quality is very close to a fully discrete surround system despite the fact that the surround image is represented by only 16kbit/s of additional data. The DAB implementation is based on a combination of the MPEG Layer-2 codec with the surround information embedded as ancillary data into the bitstream. A conventional DAB receiver will simply ignore the surround information whereas DAB surround receivers reproduce the full multi-channel sound. On the part of the broadcasting station, the SAC based system only requires an SAC compatible audio encoder.
During October 20 - 22, the Bayerische Rundfunk will broadcast 5.1-channel audio over DAB on "Bayern 4 Klassik" from 10.03 - 11.55 am ("Philharmonie") and 1.05 - 3.00 pm ("Cantabile"). The Bayerische Rundfunk will give editorial information about this project as part of its daily program.
Within 2005, Fraunhofer IIS plans to bring a real-time SAC encoder on the market. Presently, the SAC-technology is being standardized by the Moving Pictures Expert Group (MPEG), which will result in fair and reasonable licensing conditions for all manufacturers of broadcasting equipment. Panasonic Automotive Systems Europe has been a long-time supporter of the idea of multi-channel hi-fi in vehicles. The company considers the possibility of enhancing digital broadcasting systems to 5.1 by Spatial Audio Coding as an extremely promising new feature for DAB.
Visit us at Medientage October 20 - 22, 2004 in Munich, booth Y1 and Y2.
Fraunhofer Institut - Integrierte Schaltungen (IIS)
Science Research Departments
Earth Science
Alternative Energy | Anthropology and Archaeology | Earthquakes and Volcanoes | Environment and Nature News | Global Warming | High-Energy and Particle Physics | Ozone Hole | Scientists Slow Light | Tsunami
Space Science
Astronomy and Space News | Black Holes | Chandra X-Ray Observatory | Extrasolar Planets | Hubble Telescope | International Space Station | Jupiter Galileo Mission | Jupiter Cassini Mission Flyby | Mars Exploration | Mars Odyssey 2001 | Mars Global Surveyor | Mars Polar Lander | Mars Climate Orbiter | Mars Pathfinder | Meteors and Asteroids | Mir Space Station | NEAR Asteroid Probe Mission | Pluto Planet Debate | Search for Extraterrestrial Life | Space Shuttle Program | Space Shuttle Mission: STS-102 | Space Weather
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Animal News | Biotechnology and Genetics | Brain Research | Human Cloning | Dinosaur and Fossil Discoveries | Endangered Species | Gene Therapy | Genetically Modified Food | Stem Cell Research | Whales and Whaling
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