DDP85 - Dolby Digital Plus Encoder with Dolby E decoder
Description
Dolby Laboratories, with Dolby Digital Plus, is targeting at the next generation of digital transmission and optical formats. The advantage of Dolby Digital Plus is a channel count of up to 7.1 (13.1 in the future) and bit rates of about 50 percent of normal Dolby Digital.
An important application is the transcoding of normal Dolby Digital to Dolby Digital plus for cable head-ends. This gives a data rate reduction of 50% for the audio path. The DDP84 includes a Dolby E decoder. This enables the decoding of Dolby E and encoding that into Dolby Digital (plus) with only one Synapse card.
The calculation power of the DDP14/84 make a simultaneous encoding of 4 individual stereo channels (languages) to 4 Dolby Digital (Plus) 2.0 streams possible.
New is Dolby Pulse. The Ideal HE AAC Codec for Broadcast.
Dolby® Pulse is an ideal broadcast codec, combining the audio
coding efficiency of High-Efficiency AAC (HE AAC) with Dolby’s proven
quality and broadcast expertise. And with Dolby Pulse set for
implementation in professional hardware, OEM products, and licensed
encoder and decoder products, you’re assured of compatibility
throughout your next-generation broadcast chain.
The Dolby Pulse
system adds Dolby metadata capability to the optimum-efficiency HE AAC
v.2 core. With metadata parameters that match those in Dolby Digital
and Dolby Digital Plus, broadcasters and content creators can be
assured that their content will deliver a reliable, consistent
experience on every consumer device. And upstream Dolby products and
technologies will fully support Dolby Pulse.
Dolby Pulse lets
broadcasters deliver stereo and 5.1-channel audio at the lowest
bandwidth rates while maintaining high audio quality. That makes Dolby
Pulse perfect for applications where there are significant bandwidth
constraints. Because it includes Dolby metadata, Dolby Pulse is also
the one HE AAC solution that eliminates the need for a stereo simulcast
within a 5.1 broadcast, further reducing bandwidth.
Finally, Dolby
Pulse helps manufacturers meet the requirements for HE AAC in HD
receivers, as specified by major European standards bodies including
EICTA; the French, Spanish, and UK HD forums; and NorDig.
Features
The DDP85 is stand alone Dolby Digital (Plus) and/or Pulse encoders. They will support the following encoding algorithms:
- Up to 4 times 2.0 Dolby Digital (Plus) and or Dolby Pulse outputs.
- 5.1 Dolby Digital (Plus) and or Dolby Pulse + 2.0 Dolby Digital (Plus) and/or Pulse
- Dolby Pro Logic II
- Individual offset delay per input
- Individual gain control per input (except bitstream input)
- Able to handle all AES/EBU input formats
- Full audio channel shuffling
- Ability to use the Synapse ADD-ON bus for in- and output purposes.
- Locks to Black & Burst, AES input or Mastercard
- Full control and status monitoring through the front panel of the SFR04/SFR08/SFR18 frame and the Ethernet port (ACP)
- Decoding Dolby E
