Title :
On the architecture, operation, and applications of VMR-WB: the new cdma2000 wideband speech coding standard
Author :
Ahmadi, Sassan ; Jelínek, Milan
Author_Institution :
Intel Corp., CA
fDate :
5/1/2006 12:00:00 AM
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
Keywords :
3G mobile communication; broadband networks; code division multiple access; code standards; data compression; speech codecs; speech coding; VMR-WB; cdma2000 wideband speech coding standard; telephone-bandwidth speech; variable-rate multimode codec; Added delay; Bit rate; Degradation; Narrowband; Process design; Robustness; Speech codecs; Speech coding; Speech processing; Wideband;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2006.1637950
