Adaptive Postfiltering for Quality Enhancement of Coded Speech

IEEE Transactions on Speech and Audio Processing

Volumn 3, Issue 1, 1995, Pages 59-71

  Chen, Juin Hwey ^a   Gersho, Allen ^b  

^a LUCENT TECHNOLOGIES   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ADAPTIVE ALGORITHMS; ADAPTIVE FILTERING; ATTENUATION; DIGITAL FILTERS; FREQUENCY RESPONSE; GAIN CONTROL; HARMONIC ANALYSIS; NOISE ABATEMENT; POLES AND ZEROS; SIGNAL TO NOISE RATIO; SPEECH ANALYSIS; STANDARDS;

ADAPTIVE POSTFILTERING; SPECTRAL TILT COMPENSATION; SPECTRAL VALLEY; SPEECH QUALITY ENHANCEMENT;

SPEECH CODING;

EID: 0029219433     PISSN: 10636676     EISSN: None     Source Type: Journal    
DOI: 10.1109/89.365380     Document Type: Article

References (39)

1. J.-H. Chen, “Low-bit-rate predictive coding of speech waveforms based on vector quantization,” Ph.D. dissertation, Univ. Calif., Santa Barbara, Mar. 1987.
2. B. S. Atal and M. R. Schroeder “Predictive coding of speech and subjective error criteria,” IEEE Trans. Acoust., Speech, Signal Processing, vol. ASSP-27, pp. 247-254, June 1979.
3. M. R. Schroeder, B. S. Atal, and J. L. Hall, “Optimizing digital speech coders by exploiting masking properties of the human ear,” J. Acoust. Soc. Amer., vol. 66, pp. 1647-1652, Dec. 1979.
4. J. Makhoul and M. Berouti, “Adaptive noise spectral shaping and entropy coding in predictive coding of speech,” IEEE Trans. Acoust., Speech, Signal Processing vol. ASSP-27, pp. 247-254, Feb. 1979.
5. B. S. Atal, “Predictive coding of speech at low bit rates,” IEEE Trans. Commun., vol. COM-30, no. 4, pp. 600-614, Apr. 1982.
6. B. S. Atal and J. R. Remde, “A new model of LPC excitation for producing natural-sounding speech at low bit rates,” in Proc. IEEE ICASSP, Apr. 1982, pp. 614-617.
7. M. R. Schroeder and B. S. Atal, “Code-excited linear prediction (CELP): High quality speech at very low bit rates,” in Proc. IEEE ICASSP, Mar. 1985, pp. 937-940.
8. J. V. Tobias, Ed., Foundations of Modern Auditory Theory. New York and London: Academic, 1970.
9. D. O’Shaughnessy, Speech Communication: Human and Machine. Reading, MA: Addison-Wesley, 1987.
10. M. R. Schroeder, U.S. Patent No. 3 180936, April 1965.
11. M. M. Sondhi, C. E. Schmidt, and L. R. Rabiner, “Improving the quality of a noisy speech signal,” Bell Syst. Tech. J., vol. 60, no. 8, pp. 1847-1859, Oct. 1981.
12. D. Malah and R. Cox, “A generalized comb filter technique for speech enhancement,” in Proc. IEEE ICASSP, Apr. 1982, pp. 160-163.
13. J. O. Smith and J. B. Allen, “Variable bandwidth adaptive delta modulation,” Bell Syst. Tech. J., pp. 719-737, May-June 1981.
14. N. S. Jayant, “Adaptive post-filtering of ADPCM speech,” Bell Syst. Tech. J., pp. 707-717, May-June 1981.
15. V. Ramamoorthy and N. S. Jayant, “Enhancement of ADPCM speech by adaptive postfiltering,” Bell Syst. Tech. J., vol. 63, no. 8, pp 1465-1475, Oct. 1984.
16. N. S. Jayant and V. Ramamoorthy, “Predictive communication system filtering arrangement,” U.S. Patent No. 4617 676, Oct. 14, 1986.
17. —, “Adaptive postfiltering of 16 kb/s-ADPCM speech,” in Proc. IEEE ICASSP, Apr. 1986, pp. 829-832.
18. V. Ramamoorthy et al., “Enhancement of ADPCM speech coding with backward-adaptive algorithms for postfiltering and noise feedback,” IEEE J. Selected Areas Commun., vol. 6, pp. 364-382, Feb. 1988.
19. Y. Yatsuzuka, S. Iizuka, and T. Yamazaki, “A variable rate coding by APC with maximum likelihood quantization from 4.8 kbit/s to 16 kbit/s,” in Proc. IEEE ICASSP, Apr. 1986, pp. 3071-3074.
20. D. J. Zarkadis and B. G. Evans, “16 kbit/s adaptive predictive coding of speech with adaptive postfiltering,” Electron. Letts., vol. 23, no. 7, pp. 358-360, 26 Mar. 1987.
21. J.-H. Chen and A. Gersho, “Vector adaptive predictive coder for speech and audio,” U.S. Patent No. 4969192, Nov. 6, 1990.
22. —, “Real-time vector APC speech coding at 4800 bps with adaptive postfiltering,” in Proc. IEEE ICASSP, Apr. 1987, pp. 2185-2188.
23. P. Kroon and B. S. Atal, “Quantization procedures for 4.8 kbps CELP coders,” in Proc. IEEE ICASSP, Apr. 1987, pp. 1650-1654.
24. D. E. Veeneman and B. Mazor, “Enhancement of block-coded speech,” in Proc. IEEE ICASSP, Apr. 1987, pp. 193-196.
25. J. P. Campbell, V. C. Welch, and T. E. Tremain, “An expandable error-protected 4800 bps CELP coder (U.S. Federal Standard 4800 bps voice coder),” in Proc. IEEE ICASSP, May 1989, pp. 735-738.
26. I. Gerson and M. A. Jasiuk, “Vector sum excited linear prediction (VSELP) speech coding at 8 kbps,” in Proc. IEEE ICASSP, Apr. 1990, pp. 461-464.
27. “Dual-mode mobile station-base station compatibility standard (IS-54),” EIA/TIA Project Number 2215, Electronic Industries Assn., Eng. Dept., Dec. 1989.
28. J.-H. Chen, “A robust low-delay CELP speech coder at 16 kbit/s,” in Proc. IEEE Global Commun. Conf, Nov. 1989, pp. 1237-1241.
29. J.-H. Chen et al., “A low-delay CELP coder for the CCITT 16 kb/s speech coding standard,” IEEE J. Selected Areas Commun., pp. 830-849, June 1992.
30. F.-M. Wang et al., “Frequency domain adaptive postfiltering of enhancement of noisy speech,” Speech Commun., vol. 12, pp. 41-56, 1993.
31. A. Papoulis, Probability, Random Variables, and Stochastic Processes. New York: McGraw-Hill, 1991.
32. O. Ghitza and J. L. Goldstein, “Scalar LPC quantization based on formant JNDs,” IEEE Trans. Acoust., Speech, Signal Processing, vol. ASSP-34, pp. 697-708, Aug. 1986.
33. W. B. Kleijn, D. J. Krasinski, and R. H. Ketchum, “Improved speech quality and efficient vector quantization in SELP,” in Proc. IEEE ICASSP, Apr. 1988, pp. 155-158.
34. N. S. Jayant and P. Noll, Digital Coding of Waveforms. Englewood Cliffs, NJ: Prentice-Hall, 1984.
35. J. I. Lee and C. K. Un, “Improving speech quality of CELP coder,” Electron. Letts., vol. 25, no. 19, pp. 1275-1277, 14 Sept. 1989.
36. S. Wang and A. Gersho, “Improving the excitation for phonetically-segmented VXC speech coding below 4 KBPS,” in Proc. IEEE Global Commun. Conf, 1990, pp. 945-950.
37. J.-H. Chen and M. S. Rauchwerk “An 8 kb/s low-delay CELP speech coder,” in Proc. IEEE Global Comm. Conf, Dec. 1991, pp. 1894-1898.
38. Y. Tohkura, F. Itakura, and S. Hashimoto, “Spectral smoothing technique in PARCOR speech analysis-synthesis,” IEEE Trans. Acoust., Speech, Signal Processing, vol. ASSP-26, pp. 587-596, Dec. 1978.
39. J.-H. Chen, N. S. Jayant, and R. V. Cox, “Improving the performance of the 16 kb/s LD-CELP speech coder,” in Proc. IEEE ICASSP, Mar. 1992, pp. I-69-I-72.