Tensilica’s AMR Narrowband Codec Application Package
The AMR Narrowband codec package for the
Xtensa HiFi 2 Audio Engine implements AMR narrowband (NB) speech decoding and encoding and is fully compliant with the 3GPP specification for the AMR NB codec. The codec 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 an AMRNB codeci nto 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
- NB speech decoding and encoding
- Fully compliant with 3GPP specifications
Specifications (5.15 kbps)
| 17.9 MHz |
63.4 Kbytes |
31.3 Kbytes |
11.1 Kbytes |
|
* Average MHz required for single-cycle
memory.
**Total RAM includes persistent, stack and scratch. |
