• 综合性科技类中文核心期刊
    • 中国科技论文统计源期刊
    • 中国科学引文数据库来源期刊
    • 中国学术期刊文摘数据库(核心版)来源期刊
    • 中国学术期刊综合评价数据库来源期刊
QI Feng-yan, BAO Zhang-chun. Fast Algorithms on Characteristic Waveform Representation and Alignment in Waveform Interpolation Speech Coding[J]. Journal of Beijing University of Technology, 2006, 32(6): 514-519.
Citation: QI Feng-yan, BAO Zhang-chun. Fast Algorithms on Characteristic Waveform Representation and Alignment in Waveform Interpolation Speech Coding[J]. Journal of Beijing University of Technology, 2006, 32(6): 514-519.

Fast Algorithms on Characteristic Waveform Representation and Alignment in Waveform Interpolation Speech Coding

More Information
  • Received Date: December 27, 2005
  • Available Online: December 29, 2022
  • To reduce the computational complexity of characteristic waveform(CW) representation and alignment, improved algorithms for CW representation and CW alignment are proposed in this paper by applying Fast Fourier Transform, cubic B-spline interpolation and period extension. The improved algorithms are correspondingly independent, and their comploxity is reduced from 43.252 million operations per second to 9.178 million operations per second. The experimental results show that the improved algorithms have greatly reduced the computational complexity and kept the same speech quality as original coder.
  • [1]
    KLEIJN W B, HAAGEN J. Transformation and decomposition of the speech signal for coding[J]. IEEE Signal Processing Letters, 1994, 1(9): 136-139.
    [2]
    GOTTESMAN O, GERSHO A. Enhanced waveform interpolate coding at low bit-rate[J]. IEEE Trans Speech and Audio Processing, 2001, 9(8): 786-798.
    [3]
    KLEIJN W B, SHOHAM Y, SEND, et al. A low-complexity waveform interpolation coder[C] // ICASSP' 96. Atlanta: IEEE, 1996: 212-215.
    [4]
    SHOHAM Y. Very low complexity interpolation speech coding at 1.2 to2.4 kbit/s[C]//ICASSP'97. Munich: IEEE Computer Society Press, 1997: 1599-1602.
    [5]
    JIANG Hao,CUI Hui-juan, TANG Kun. 2-2.4 kbit/s low complexity interpolative vocoder[C]//ICCT'98. Beijing: Publishing House of Construction Materials, 1998, 2(S36-07): 1-4.
    [6]
    李靓.高质量的2 kb/s波形内插语音编码算法研究[D].北京:北京工业大学电子信息与控制工程学院,2005. LI Jing. Research on high quality waveform interpolation speech coding at 2 kb/s[D]. Beijing: College of Electronic Information and Control Engineering, Beijing University of Technology, 2005. (in Chinese)
    [7]
    鲍长春.低比特率数字语音编码基础[M].北京:北京工业大学出版社,2001.
    [8]
    UNSER M. Splines-a perfect fit for signal and image processing[J ]. IEEE Signal Processing Magazine, 1999, 16(6): 22-38.

Catalog

    Article views (7) PDF downloads (7) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return