On the architecture, operation, and applications of VMR-WB: the new cdma2000 wideband speech coding standard

Authors:
S. Ahmadi;M. Jelinek
Affiliations:
Intel Corp., CA;-
Venue:
IEEE Communications Magazine
Year:
2006

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Abstract

This article is an overview of the architecture and operation of the VMR-WB5 a source- and network-controlled variable-rate multimode codec designed for robust processing of wideband speech. To enable a smooth transition from legacy narrowband voice services, VMR-WB is also capable of processing conventional telephone-bandwidth speech. The VMR-WB codec is interoperable with AMR-WB at certain bit rates, thus eliminating quality degradation and additional delay due to transcoding