Title :
Performance Evaluation of the Unified Pulse-Replacement (UPR) Algorithm for 3GPP-AMR 12.2k Speech Coder
Author :
Chen, Fu-Kun ; Chen, Guan-Ming ; Jou, Yue-Dar
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Southern Taiwan Univ., Tainan, Taiwan
Abstract :
The algebraic code excited linear prediction (ACELP) structure has been adopted by many speech coding standards because of its high speech quality. With analysis-by-synthesis optimizations, the ACELP speech coder can provide an efficient coding technique for the linear predicted residuals. This paper introduces the unified pulse-replacement (UPR) algorithm again and evaluates its performance for the 3GPP-AMR 12.2k speech coder. Simulation results show that the UPR algorithm can reduce the computational complexity of 3GPP-AMR speech coder with an imperceptible degradation of speech quality.
Keywords :
3G mobile communication; computational complexity; speech coding; vocoders; 3GPP-AMR speech coder; algebraic code excited linear prediction; computational complexity; speech quality degradation; unified pulse replacement algorithm; Algorithm design and analysis; Ground penetrating radar; Neodymium; Prediction algorithms; Speech; Speech coding; 3GPP-AMR; ACELP; Speech coder; Unified pulse-replacement;
Conference_Titel :
Robot, Vision and Signal Processing (RVSP), 2011 First International Conference on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1881-6
DOI :
10.1109/RVSP.2011.30
