ITU-T G.729 Speech Coder for the TMS320C54x Generation

Description

The ITU-T G.729 fixed-rate speech coder provides toll quality at very low bandwidth. G.729 compresses narrowband linear speech signals at a sample rate of 8kHz to 8kbps, using Conjugate-Structure, Algebraic Code-Excited Linear Prediction (CS-ACELP). The encoder extracts the parameters of the CELP coding model from 10-msec frames.

G.729 encoder is widely used in applications that require robust quality, including videoconferencing, internet, multimedia communications, satellite communications, and store/forward.

The G.729 vocoder is part of the DSP Wizard G.729 suite for TMS320C54x, which is comprised of five separate products:

Features

DSP Wizard’s G.729 implementation was designed for low resource requirements without sacrificing quality. It executes at 18.1 mips for worst-case data. The speed is faster than any other G.729 c54x implementation available. While it may seem that many DSP software vendors claim to have the best speeds, we can back up our claim. Please compare us to the competition.

• Highly optimized for TMS320C54x
• Bit-exact fixed-point implementation per ITU-T test suite
• Fully reentrant—self-preemptible
• Multichannel
• Simple integration into existing systems via C-callable functions
• TI eXpressDSP compliant algorithm
• Object libraries for near and far models
• Release/version 1.0
• Available now
• Delivered as a Zip file

Performance

dspwizard@dspwizard.com