Papers

A Fast Adaptive-codebook Search Algorithm for G.723.1 Speech Coder

International Journal
~2005
작성자
이진영
작성일
2005-01-01 13:11
조회
446
Authors : Sung-Kyo Jung, Kyung-Tae Kim, Young-Cheol Park, Hong-Goo Kang

Year : 2005

Publisher / Conference : IEEE Signal Processing Letters

Volume : 12, issue 1

Page : 75-78

This letter presents a new fast search algorithm for the multitap adaptive codebook used in the G.723.1 standard speech coder. In contrast with the standard method that a closed-loop pitch lag and gains for a fifth-order pitch predictor are searched simultaneously, the proposed algorithm adopts a sequential and restricted approach to determine the parameters. In other words, the proposed scheme first determines a couple of pitch lag candidates using a first-order pitch predictor and then computes the pitch gains of the fifth-order predictor within a restricted search area. Experimental results confirm that the proposed algorithm reduces the total complexity by 30.69% in the encoding process and provides speech quality equivalent to the standard method.
전체 329
12 International Journal Chulhan Lee, Jeung-Yoon Choi, Kar-Ann Toh, Sangyoun Lee "Alignment-Free Cancelable Fingerprint Templates Based on Local Minutiae Information" in IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics), vol.37, issue 4, pp.980-992, 2007
11 International Journal Kyung Tae Kim, Jeung-Yoon Choi, Hong-Goo Kang "Perceptual relevance of the temporal envelope to the speech signal in the 4–7kHz band" in The Journal of the Acoustical Society of America, vol.122, issue 3, 2007
10 International Journal Chang-Heon Lee, Sung-Kyo Jung, Hong-Goo Kang "Applying A Speaker-dependent Speech Compression Technique to Concatenative TTS Synthesizers" in IEEE Transactions on Audio, Speech, and Language Processing, vol.15, 2, pp.632-640, 2007
9 International Journal Seungil Kim, Chungyong Lee, Hong-Goo Kang "Optimum beamformer in correlated source environments" in Journal of Acoustical Society of America, vol.120, issue 6, 2006
8 International Journal Kyoung Ho Bang, Young-Cheol Park, Jeongil Seo "Audio Transcoding for Audio Streams from a T-DTV Broadcasting Station to a T-DMB Receiver" in ETRI Journal, vol.28, issue5, pp.664-667, 2006
7 International Journal Ken Chen, Mark Hasegawa-johnson, Aaron Cohen, Sarah Borys, Sung-Suk Kim, Jennifer Cole, Jeung-Yoon Choi "Prosody dependent speech recognition on radio news corpus of American English" in IEEE Transactions on Audio, Speech, and Language Processing, vol.14, issue 1, pp.232-245, 2006
6 International Journal Jeung-Yoon Choi, Mark Hasegawa-Johnson, Jennifer Cole "Finding intonational boundaries using acoustic cues related to the voice source" in The Journal of the Acoustical Society of America, vol.118, issue 4, 2005
5 International Journal Mark Hasegawa-Johnson, Ken Chen, Jennifer Cole, Sarah Borys, Sung-Suk Kim, Aaron Cohen, Tong Zhang, Jeung-Yoon Choi, Heejin Kim, Taejin Yoon, Sandra Chavarria "Simultaneous recognition of words and prosody in the Boston University Radio Speech Corpus" in Speech Communication, vol.46, issue 3-4, pp.418-439, 2005
4 International Journal Thomas Eriksson, Samuel Kim, Hong-Goo Kang, Chungyong Lee "An information-theoretic perspective on feature selection in speaker recognition" in IEEE Signal Processing Letter, vol.12, issue 7, pp.500 - 503, 2005
3 International Journal Yang-Won Jung, Hong-Goo Kang, Chungyong Lee, Dae Hee Youn, Changkyu Choi, Jaywoo Kim "Adaptive Microphone Array System with Two-Stage Adaptation Mode Controller" in IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences, vol.E88-A, pp.972-977, 2005