Tensilica’s Dolby Digital AC-3 Decoder Application Package

The Dolby Digital AC-3 Decoder package for the Xtensa HiFi 2 Audio Engine implements the Dolby Digital (AC-3) audio decoder supporting multichannel (5.1) and stereo decoding over the full range of bit and sample rates. The decoder is a fixed-point implementation written fully in C and available in object code.  Included documentation describes how to incorporate the decoder into a system.  Using this package, system developers can integrate an AC-3 decoder into an SOC without the need for additional optimizations or software development.  The same Xtensa HiFi 2 Audio Engine is used for other Tensilica audio codecs, enabling the development of highly optimized multi-standard audio SOC designs.

Feature Summary

• Multichannel (5.1) decoding
• Supports all standard down-mix modes
• Supports the full range of bit and sample rates
• Fully compliant with Dolby Laboratories compliance testing

Specifications - 384 & 448 kbps, 48 KHz

* Average MHz required for single-cycle memory.
** Total RAM includes persistent, stack and scratch.