Speech Processing Standards

  • A. Nejat Ince
Part of the The Kluwer International Series in Engineering and Computer Science book series (SECS, volume 155)


This chapter deals with speech processing standards for 64,32, 16 kb/s and lower rate coders and more generally, speech-band signals which are or will be promulgated by CCITT and NATO. The International Telegraph and Telephone Consultative Committee (CCITT) deals, among other things, with speech processing within the context of ISDN. Within NATO there are also bodies promulgating standards which make interoperability possible without complex and expensive interfaces.

The chapter highlights also some of the applications for low-bit rate coding and the related work undertaken by CCITT Study Groups which are responsible for developing standards in terms of encoding algorithms, codec design objectives as well as standards on the assessment of speech transmission quality.


Mean Opinion Score Asynchronous Transfer Mode Speech Quality Linear Predictive Code Pulse Code Modulation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. [1]
    Bellchambers W.H. et al., “The International Telecommunication Union and Development of Worldwide Telecommunications”, IEEE Com. Magazine, Vol. 22, No.5, May 1984.Google Scholar
  2. [2]
    “Digital Networks, Transmission Systems and Multiplexing Equipment” CCITT Red Book, Vol III-Fascicle III-3, Geneva 1985.Google Scholar
  3. [3]
    Decina, M. and Modéra G., “ CCITT Standards on Digital Signal Processing” IEEE Selected Areas in Communications Vol.6, No.2, Feb., 1988.Google Scholar
  4. [4]
    CCITT SG XVIII, Rep.R.26(C), Working Party 8, Geneva Meeting, Aug., 1986.Google Scholar
  5. [5]
    Benvenito al., “The 32 kb/s ADPCM Coding Standard”, ATT Tech.J., Vol.65, Sept/Oct. 1986.Google Scholar
  6. [6]
    CCITT Report COM XVIII — R26(C) part C.2, “Draft Recommendation G72X: 7kHz Audio Coding within 64 kb/s”, July 1986.Google Scholar
  7. [7]
    Maitre X.,“7 kHz Audio Coding within 64 kb/s”,IEEE Journal on Selected Areas in Communications, Vol.6, No.2, Feb. 1988.Google Scholar
  8. [8]
    CCITT SG XVIII, Rep. R45(C), Working Party 8, Hamburg Meeting, July, 1987.Google Scholar
  9. [9]
    Gerhauser, H.L.,“Digital Speech Interpolation with Predicted Wordlength Assignment”, IEEE Trans, on Corns., Vol. COM-30, No.4, April 1982.Google Scholar
  10. [10]
    Natvig, J.E., “Evaluation of Six Medium Bit-Rate Coders for the Pan-European Digital Mobile Radio System”, IEEE Journal on Selected Areas in Communications, Vol.6, No.2, February 1988.Google Scholar
  11. [11]
    “Packet Speech and Video”, IEEE Journal on Selected Areas in Corns., Vol.7, No.5, June 1989.Google Scholar
  12. [12]
    “Broadband Packet Communications”, IEEE Journal on Selected Areas in Corns., Vol.6, No.9, December 1988.Google Scholar
  13. [13]
    Muise, R.W. et al., “ Experiments in Wideband Packet Technology” International Zurich Seminar (IZS’86), March 1986.Google Scholar
  14. [14]
    NATO Documents: AC/320-D/159:AV/302(NBDS)D/13, dated 11 June 1981.Google Scholar
  15. [15]
    Campbell, al., “An Expandable Error-Protected 4800 b/s CELP Coder” Proc. ICASSP, 1989.Google Scholar
  16. [16]
    Mermelstein, P., “G-72z, A New CCITT Coding Standard for Digital Transmission of Wideband Audio Signals”, IEEE Com.Mag., Jan. 1988.Google Scholar
  17. [17]
    Jayant, N.S., “High Quality Coding of Telephone Speech and Wideband Audio”,.Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • A. Nejat Ince
    • 1
  1. 1.Istanbul Technical UniversityIstanbulTurkey

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