Network hardware manufacturer Ericsson has announced the completion of the first call using its new HD CDMA codec for voice calls over CDMA2000 networks. The call was completed utilizing hardware provided by Qualcomm in a lab setting and is claimed to reduce listening fatigue by encoding speech in the new Enhanced Variable Rate Codec Narrowband-Wideband codec otherwise known as EVRC-NW. The codec is claimed to reduce fatigue by increasing the dynamic range of the encoded speech within a wider frequency range, starting at 50Hz to 7000Hz. Neither Ericsson nor Qualcomm have confirmed when the new protocol would be commercially available in hardware.
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By Humberto Saabedra on March 17, 2011