Tensilica’s MPEG-4 aacPlus v1 Encoder Application Package

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The MPEG-4 aacPlus^TM v1 Encoder package for the Xtensa HiFi 2 Audio Engine implements 24-bit MPEG-4 aacPlus v1 encoding compliant with ISO/IEC 14496-3, supporting AAC and SBR (Spectral Band Replication) in mono and stereo configurations. The encoder is 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 a MPEG-4 aacPlus encoder 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 Spectral Band Replication (SBR)
• Compliant with ISO/IEC 14496-3 and the 3GPP specifications for Enhanced aacPlus

Specifications

Based on 48 KHz sample rate and 64 Kbps bit rate.
* Average MHz 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.