Chepstow UK, 15 April 1998 - Ensigma announced today the completion of it's Dolby AC-3 decoder implementation for DSP Group's OakDSPCoreÒ . Steven Roberts at Ensigma said "We are the only company we are aware of to be offering a Dolby qualified solution for the OakDSPCore". Clifford Parris, head of the coding group, said "our initial offering is a sub 40 MIPS class C decoder for cost effective, low power consumer applications such as portable DVD decoders". "Further optimisation of the software will be ongoing during 1998 with the possibility of a class A implementation in around 55 MIPS", Parris continued.
"We are delighted to have Ensigma support our OakDSPCore by implementing the AC-3 decoder for the core," said Irving Gold, vice president for marketing and sales, core technology for DSP Group. "Multimedia, MPEG and DVD are ‘hot' markets today. By using Ensigma's AC-3 implementation designers will be able to reduce the development time and bring products into these markets quickly and effectively."
The following tables summarises Ensigma's AC-3 decoder implementation for the OakDSPCore:
Features and Benefits
- Full downmix options including 6:2
- Conforms to OAK C environment.
- Full test harness supplied for OAK simulator.
- Full documentation.
- Source code available.
- The Ensigma implementation is fully compliant with the ATSC Digital Audio Compression (AC-3) standard.
- The implementation has been tested by Dolby Laboratories and was awarded a C classification.
Processor and System Requirements
- Program memory (ROM): 9K words
- Data memory (ROM): 5.5K words
- Data memory (XRAM): 9K words (6 channels of output)
- Data memory (YRAM): 1K
- MIPS loading
- 39.5 Worst case on test vectors
- 36.7 Average on music (5.1 channels)
OakDSPCore is a registered trademark of DSP Group, Inc. All rights reserved world-wide
Turing House, Station Road Chepstow, NP6 5PB, UK
Tel: 44 1291 625 422
FAX: 44 1291 620 301