Tensilica’s MPEG-4 aacPlus v2 Decoder Application Packages

The MPEG-4 aacPlus^TM v2 Decoder packagse for the Xtensa HiFi 2 Audio Engine implements 24-bit MPEG-4 aacPlus v2 decoding compliant with ISO/IEC 14496-3 and the 3GPP specification for Enhanced aacPlus, supporting AAC, PS (Parametric Stereo), and Spectral Band Replication (SBR^TM) in mono and stereo configurations or in a multi-channel configuration supporting up to 7.1 channels.

The decoders are a fixed-point implementation written in C and available in either object or source code. Included documentation describes how to incorporate the decoder into a system. Using this package, system developers can integrate an MPEG-4 aacPlus v2 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

• Support for Parametric Stereo and Spectral Band Replication
• Compliant with ISO/IEC 14496-3 and the 3GPP specifications for Enhanced aacPlus
• One version for stereo (2-channel); another version for multi-channel up to 7.1 channels

Specifications for Stereo - 44.1 HKz sample rate and 48 Kbps without LOAS

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

aacPlus and SBR are trademarks of Coding Technologies and Coding Technologies reserves all rights to these names.