content here.
content here.

Dolby Digital EX Decoder

Dolby® Digital EX is an extension of the Dolby Digital decoding algorithm that adds a center rear channel to 5.1-channel playback, expanding the surround sound experience to 6.1 channels. The signal for the center rear channel is extracted from the left and right surround channels and can be sent to one or two speakers placed behind the listener. This module can only be shipped to ...More

Dolby Digital EX Decoder

Product Description

Dolby® Digital EX is an extension of the Dolby Digital decoding algorithm that adds a center rear channel to 5.1-channel playback, expanding the surround sound experience to 6.1 channels. The signal for the center rear channel is extracted from the left and right surround channels and can be sent to one or two speakers placed behind the listener. This module can only be shipped to pre-approved Dolby "qualified recipients."

RESOURCES & TOOLS

What is your task? Try Lead the Way AdvisorTM BETA
Td

TECHNICAL DOCUMENTATION

Eb

EVALUATION BOARDS & DEVELOPMENT KITS

Ts

TOOLS, SOFTWARE & SIMULATION MODELS

Features

back to top

Functions

back to top

Performance Metrics

MIPS summary:

Code memory (KiB) Data RAM (KiB) Constant Data Tables (KiB) MIPS
Average Peak
38.0 39.2 15.0 113.8 127.1
  • This table highlights example Blackfin processors and expected MIPS performance. Some processors include additional L2 internal memory (e.g. BF548) which can help reduce MIPS when fully utilised. Similarly, processors with high speed external memory interfaces (32-bit versus 16-bit or DDR versus SDRAM) will also help reduce overall MIPS requirements.
  • In the table above, all figures refer to one instance of DDEX. "Data RAM" includes Stack, Scratch, Instance State, one single-buffered input buffer and seven single-buffered output buffers, each containing 256 32-bit samples.
  • MIPS figures indicated in the table have been measured using 48 kHz sampling frequency, 7 output channels (6.1 speaker configuration), optimal memory layout, worst-case input test vectors, and a block size of 256 samples per channel.
  • Heap (or "malloc()") is not used.
  • 1 KiB = 1024 Bytes.

back to top

Applications

back to top

Requirements

back to top

Availability and Licensing

Each module supports the Analog Devices, Inc. (ADI) Blackfin Processor family and is a licensed product that is available in object code format. Recipients must sign a license agreement with ADI prior to being shipped the modules identified in the license agreement.

Contact your ADI Sales Rep to request this code. If you need to find a Sales Rep in your area, please visit the Sales & Distributor Map/Listing.

back to top