Speech coding technology for ATM networks

A type of speech coding for asynchronous transfer mode (ATM) is described. Cell processing, which improves service quality, is taken into account. Missing-cell recovery methods are discussed, and the distinctive features of missing-cell recovery methods used with low-bit-rate coding are examined. An example of the speech quality obtained using speech coding techniques in the ATM networks is described. The performance levels for increasing cell loss are compared for various speech coding methods, in combination with methods for dividing coded speech signals into cells and discarding cells. Representative feasible network applications of coding technologies are considered.<<ETX>>

[1]  H. Nakada,et al.  Variable rate speech coding and network delay analysis for universal transport network , 1988, IEEE INFOCOM '88,Seventh Annual Joint Conference of the IEEE Computer and Communcations Societies. Networks: Evolution or Revolution?.

[2]  S.E. Minzer,et al.  Broadband ISDN and asynchronous transfer mode (ATM) , 1989, IEEE Communications Magazine.

[3]  K. Takahashi,et al.  Communications quality analysis for ATM networks , 1989, IEEE International Conference on Communications, World Prosperity Through Communications,.

[4]  N. Kitawaki,et al.  Quality assessment of speech coding and speech synthesis systems , 1988, IEEE Communications Magazine.

[5]  F. Kishino,et al.  Multimedia high-throughput X.25 packet switching system , 1989 .

[6]  Masahiro Taka,et al.  Missing packet recovery techniques for low-bit-rate coded speech , 1989, IEEE J. Sel. Areas Commun..

[7]  J.F. Mollenauer Standards for metropolitan area networks , 1988, IEEE Communications Magazine.

[8]  K. Takahashi,et al.  Transmission quality of evolving telephone services , 1988, IEEE Communications Magazine.

[9]  B. Schaffer Synchronous and asynchronous transfer modes in the future broadband ISDN , 1988, IEEE International Conference on Communications, - Spanning the Universe..

[10]  David J. Goodman Embedded DPCM for Variable Bit Rate Transmission , 1980, IEEE Trans. Commun..

[11]  M. Malek-Zavarei,et al.  Generic approaches to the design of network services circuits , 1984, AT&T Bell Laboratories Technical Journal.