Coding of Speech at 8 kbit/s Using Conjugate-Structure Algebraic-Code-Excited Linear Prediction (CS-ACELP) Annex C+: Reference Floating-Point Implementation for Integrating G.729 CS-ACELP Speech Coding Main Body with Annexes B, D and E Study Group 16; CO
This annex provides a description of integrating the G.729 main body with Annexes B, D and E in
floating point arithmetic. It presents a standard way of performing this integration and expansion of
the functionality hereby guiding the industry and ensuring a standard speech quality and
compatibility worldwide. The integration has been performed with focus on several constraints in
order to satisfy the need of the industry:
1)Bit-exactness with the main body in floating point (Annex C).
2)Minimum additional program code, memory, and complexity usage.
3)Stringent quality requirements to new functionality inline with quality and application areas of the according standard annexes.