Computational Reduction For G.729’s LSP Quantization

Please use this identifier to cite or link to this item: http://ir.lib.ncut.edu.tw/handle/987654321/3500

Title:	Computational Reduction For G.729’s LSP Quantization
Authors:	Cheng-Yu Yeh Chang-Zhi Zhuo
Contributors:	Department of Electrical Engineering,National Chin-Yi University ofTechnology, Taichung, Taiwan
Keywords:	CS-ACELP LSP vector quantization tree VQ
Date:	2010-06
Issue Date:	2010-09-15 09:50:31 (UTC+8)
Abstract:	G.729 standard has been widely used in the VoIP system. But the computational complexity is too large to real-time work via software implementation on embedded devices. Even though the G.729A, it is still hard to implement. This paper will focus on the computational reduction of the quantization procedure of LSP coefficients. Thus, the hybrid two-stage VQ is proposed to replace the original structure. Experimental results confirm that more than 80% of computations can be eliminated in comparison with the conventional G.729 as well as the performance of speech quality is still good. The proposed approach can be successfully used in LSP quantization procedure and the efficiency is excellent.
Relation:	第五屆智慧生活科技研討會論文集(上)
Appears in Collections:	[Department of Computer Science and Information Engineering] The 5th Imtelligent Living Technology Conference

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