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Hi .. If someone wants to read the details of the EVRC coder, then he has to contact the TIA (North America Telecommunications Industry Association) to buy the EVRC document: TIA/EIA, TR45 (1996). Enhanced variable rate codec, speech service option 3 for wideband spread spectrum systems, Interim Standard IS-127. The only reference that talks about the EVRC coder is a recent article from Lucent (key designer of the EVRC coder) that appeared in the May 1999 issue of the International Journal of Speech Technology: M. C. Recchione, "The Enhanced Variable Rate Coder: Toll Quality Speech for CDMA", International Journal of Speech Technology, Vol. 2, No. 4, May 1999, pp. 305-315. (Kluwer Academic Publishers) Note: This is a recommended issue for the speech coding community as it is a speical issue containing good number of state-of-the-art speech coding papers written by known names in the field. ----------------------------- Khaled El-Maleh Department of Electrical & Computer Engineering McGill University 3480 University St. Montreal Quebec H3A 2A7 Canada Telephone: (514) 398-5233 (O) Fax : (514) 398-4470 ----------------------------- On Mon, 18 Oct 1999 wrote: > Does somebody can point to good (easy) references to EVRC? > > Thanks, > > Sara > khaled el-maleh <> wrote: > > > Do not forget to read about the CDMA Enhanced Variable Rate Vocoder > > (EVRC), and the Q13 CDMA vocoder. > > > > > ----------------------------- Khaled El-Maleh Department of Electrical & Computer Engineering McGill University 3480 University St. Montreal Quebec H3A 2A7 Canada Telephone: (514) 398-5233 (O) Fax : (514) 398-4470 |