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ETSI TS 146 012
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ETSI TS 146 012 Digital cellular telecommunications system (Phase 2+); Full rate speech; Comfort noise aspect for full rate speech traffic channels (3GPP TS 46.012 version 14.0.0 Release 14)
standard by European Telecommunications Standards Institute, 04/01/2017
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Full Description
The present document gives the detailed requirements for the correct operation of the background acoustic noiseevaluation, noise parameter encoding/decoding and comfort noise generation in GSM Mobile Stations (MS)s and BaseStation Systems (BSS)s during Discontinuous Transmission (DTX) on full rate speech traffic channels.The requirements described in the present document are mandatory for implementation in all GSM MSs. The receiverrequirements are mandatory for implementation in all GSM BSSs, the transmitter requirements only for those wheredownlink DTX will be used.