G723.1 Voice Codec 5.3/6.3 kbps

G.723.1 is a dual rate speech coder standard from the ITU-T, for compressing the toll quality speech (8000 samples/second). Typical applications of this speech coder are in telephony over packet networks, like Voice-over-Internet-Protocol (VoIP). This speech coder is also used for coding the speech component in video conferencing applications and is part of the H.324 family of standards.
This codec supports two bit rates, 5.3 and 6.3 kbps. Both bit rates share the same short-term analysis techniques for processing the speech. For long-term analysis of speech, the algorithms used are different. For 5.3 Kbps coder, Algebraic Code Excited Linear Prediction (ACELP) principles are used where as in 6.3 kbps coder, Multi Pulse-Maximum Likelihood Quantization (MP-MLQ) techniques are used.

We currently offer implementations of the G.723.1 Codec for the following DSP families:
Texas Instruments TMS320C55x, TMS320C54x, TMS320C62x, TMS320C64x and Analog Devices Blackfin.

Datasheet for TI C54x/C55x
Datasheet for TI C62x/C64x
Datasheet for Blackfin

For more information, please contact us.