Coding of Speech at 8 kbit/s Using Conjugate Structure Algebraic Code-Excited Linear Prediction (CS-ACELP) Annex I: Referenced Fixed-Point Implementation for Integrating G.729 CS-ACELP Speech Coding Main Body with Annexes B,D&E Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems-Terminal Equipments-Coding of Analogue Signals by Methods Other Than PCM