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Volume 29 Issue 2
Jan.  2011
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Cong Jian, Zhang Zhi-yi. A Very Low Bit Rate Speech Encoding Algorithm in 600bps[J]. Journal of Electronics & Information Technology, 2007, 29(2): 429-433. doi: 10.3724/SP.J.1146.2005.00910
Citation: Cong Jian, Zhang Zhi-yi. A Very Low Bit Rate Speech Encoding Algorithm in 600bps[J]. Journal of Electronics & Information Technology, 2007, 29(2): 429-433. doi: 10.3724/SP.J.1146.2005.00910

A Very Low Bit Rate Speech Encoding Algorithm in 600bps

doi: 10.3724/SP.J.1146.2005.00910
  • Received Date: 2005-07-26
  • Rev Recd Date: 2005-12-19
  • Publish Date: 2007-02-19
  • A very low bit rate speech encoding algorithm in 600bps is proposed in this paper for application in anti-jamming communication. Super-frame structure with 2 base frames and 4 interpolate frames is used, the LPC coefficients of interpolate frames is quantized with 4 stages residual matrix quantization based on optimal 1-order linear prediction. In the decoder, a closed loop estimation of the impulse magnitude is proposed to improve the naturalness of speech and the articulation of nasals. This speech coder achieves good quality of speech and the DRT score is 88.55。
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  • [1] McCree A V and Barnwell T P. A new mixed excitation LPC vocoder. In Proc. ICASSP, Toronto, Canada, 1991: 593-596. [2] McCree A V and DeMartin J C. A 1.7kb/s MELP coder with improved analysis and quantization. In Proc. ICASSP, 1998, Seattle, vol.2: 593-596. [3] Das A and Gersho A. Low rate multimode multiband spectral coding of speech[J].International Journal of Speech Technology.1999, 2(4):317-327 [4] McAulay R J and Quatieri T F. Sinusoidal Coding. In Speech Coding Synthesis, Eds. The Netherlands: Elsevier, 1995, chap.4: 121-173. [5] Kleijn W B. Speech coding below 4kb/s using waveform interpolation. In Proc. GLOBECOM, Phoenix, 1991, vol.3: 1879-1883. [6] Shoham Y. Very low complexity interpolative speech coding at 1.2 to 2.4kb/s. In Proc. ICASSP, Munich, Germany, 1997: 1599-1602. [7] Wang T, Koishida K, and Cuperman V, et al.. A 1200/2400 bps coding suite based on MELP. Proc. of IEEE Workshop on Speech Coding, Tsukuba, Japan, 2002: 6-9. [8] LeBlanc W P, Bhattacharya B, and Mahmoud S A. Efficient search and design procedures for robust multistage vector quantization of LPC parameters for 4kbps speech coding[J].IEEE Trans. on Speech and Audio Process.1993, 1(4):373-385 [9] Nandkumar S, Swaminathan K, and Bhaskar U. Robust speech mode based LSF vector quantization for low bit rate speech coders. In Proc. ICASSP, Seattle, 1998: 41-44. [10] Ozaydin S and Baykal B. A 1200 bps speech coder with LSP matrix quantization. IEEE Int. Conf. on ASSP, Salt Lake City, 2001: 677-680. [11] Tsao C and Gray R M. Matrix quantizer design for LPC speech using the generalized Lloyd algorithm. IEEE Trans. on ASSP, 1985, ASSP-33(3): 537-545. [12] Sukkar R A, LoCicero J L, and Picone J W. Decomposition of theLPC excitation using the sinc basis functions[J].IEEE Trans. on ASSP.1989, 37(9):1329-1341 [13] 张知易, 王瑛. 几种中低速语音编码的音质评价实验. 第5届全国语音国家通信信号处理学术会议, 北京, 1997, 109-113.
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