线谱频率参数的分裂矢量量化
SPLIT VECTOR QUANTIZATION OF LINE SPECTRAL FREQUENCY PARAMETERS
-
摘要: 本文简要介绍了线谱频率(LSF)参数的定义和性质,给出了一种求解LSF参数的有效办法。在LPC语音编码中设计了一种新的LSF参数分裂矢量量化器。主观和客观评价结果表明,以每帧25bit对LSF参数编码,该量化器提供了透明的量化质量。Abstract: In this paper, the definition and properties of Line Spectral Frequency(LSF) parameters are introduced briefly. An efficient solution method of obtaining LSF parameters is presented. A new Split Vector Quantizer(SVQ) of LSF parameters is designed in LPC speech coding. The objective and subjective evaluations show that the proposed scheme offers transparent quantization quality with 25 bit/frame.
-
Soong F S, Juang B H. Line Spectrum Pair (LSP) and speech data compression. Proc ICASSP, San Diego. California: 1984, 1.10.1-1.10.4.[2]Kang F K, Fransen L J. Application of line spectrum pairs to iow-bit-rate speech encoders. Proc. ICASSP, Tampa, Florida: 1985, 244-247.[3]Sugamura N, Farvardin N. (auantizer design in LSP speech analysis-synthesis, IEEE J[J].of Selected Areas in Communication.1988, 6(2):432-440[4]Paliwal K K, Atal B S. Efficient vector quantization of LPC parameters at 24bits/frame, IEEE Trans[J].on Speech Audio Processing.1993, 1(1):3-14[5]Gersho A, Gray R M. Vector lauantization and Signal Compression. Kluwer Academic Publishers, 1992.[6]Miguel A, Ferrer-Ballester, Anibal R. Vidal F. Efficient adaptive vector quantization of LPC[7]parameters, IEEE Trans. on Speech Audio Procesglng, 1995, 3(4): 3-14. -
计量
- 文章访问数: 2309
- HTML全文浏览量: 148
- PDF下载量: 422
- 被引次数: 0
下载:
