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• IBC Final Thoughts: 47,000 People Can’t Be Wrong
by Ken Kerschbaumer | Sep 16, 2008 - 4:47:22 AM • IBC: Packing It In... by Kevin Hilton | Sep 16, 2008 - 4:31:28 AM • Inside Look at Grass Valley Dyno Instant Replay by Ken Kerschbaumer | Sep 15, 2008 - 10:51:50 AM • IBC Day Four: Quick Hits by Ken Kerschbaumer | Sep 15, 2008 - 7:31:04 AM |
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Dolby Unveils Dolby Pulse Audio Technology for Broadcast Applications and Beyond
Dolby
Pulse encompasses a bit-stream format as well as dedicated encoder and decoder
solutions. Built on and compatible with the MPEG-4 HE-AAC (High Efficiency
Advanced Audio Coding) open-standard audio codec, Dolby Pulse brings Dolby's
experience with content delivery ecosystems to emerging entertainment platforms
such as HD television, mobile phones, portable media players, PCs, and online
entertainment. It combines the advanced bit-rate efficiencies of HE-AAC with
the performance, features, consistency, and compatibility expected of Dolby
audio technologies.
"Just as Dolby Digital
and Dolby Digital Plus set the standard for high-quality audio in the cinema
and home theater, we expect Dolby Pulse to set a new benchmark for quality and
consistency in HE-AAC audio codecs," said Martin Dietz, Vice President,
EMEA and Business Strategy, Dolby Laboratories. "Dolby Pulse has the
potential to extend the Dolby entertainment experience to a host of new devices
and services."
In broadcast applications,
Dolby Pulse is designed to meet the varying needs of broadcasters and operators
in different regions. Complementing Dolby Digital and Dolby Digital Plus, Dolby
Pulse addresses next-generation applications where bandwidth efficiency is
critical. Based on a consistent code base and equipped with support of various
metadata, Dolby Pulse is designed to provide consistent and predictable results
throughout the broadcast chain to the consumer's television. For broadcasters
with significant bandwidth constraints, Dolby Pulse offers the capability to
broadcast multichannel audio at low data rates.
Delivering true Dolby
metadata functionality, Dolby Pulse enables a single 5.1 stream to handle
multichannel, stereo, and mono signals with seamless switching, eliminating the
need for bandwidth-consuming simulcasting. Meanwhile, dialnorm values embedded
into broadcast streams can correctly set the loudness level, while preserving
dynamic range. This means Dolby Pulse is able to deliver metadata functionality
to match the metadata features of Dolby Digital and Dolby Digital Plus, and
provide an excellent experience for the consumer and a high-efficiency solution
for broadcasters.
In a broadcast landscape that
now includes IPTV, mobile, and Internet, as well as terrestrial, cable, and
satellite services, Dolby Pulse marks an important addition to Dolby's suite of
audio solutions. Dolby's goal is to implement Dolby Pulse across the broadcast
chain--in hardware, OEM products, and licensed encoder and decoder solutions.
Dolby Pulse is compliant with new HDTV specifications set by key European
industry bodies including EICTA, the French and Spanish HD forums, and NorDig.
Support for Dolby Pulse is
planned across a wide range of Dolby professional products, while professional
licensing development kits for real-time and file-based Dolby Pulse encoding
applications are expected to be available in 2009.
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