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TS 26.450 (SA4)
Codec for Enhanced Voice Services (EVS) –
Discontinuous Transmission (DTX)

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V16.0.0 (Wzip)  2019/03  8 p.
V15.0.0 (PDF)  2018/06  10 p.
V14.0.0  2017/03  10 p.
V13.0.0  2015/12  10 p.
V12.0.0  2014/09  10 p.


Rapporteur:  Dr. Gibbs, Jon
See also:

The present document specifies the system level aspects of the Discontinuous Transmission (DTX) function of the EVS codec. Specific codec functions that implement the DTX functionality are described in TS 26.445.

Discontinuous transmission (DTX) is a mechanism for the EVS Codec to encode the input signal at a lower average rate by taking speech inactivity into account. The DTX scheme is useful for the following purposes: DTX in the transmitting path (uplink) shall be in operation in UEs if commanded so by the network. The UE shall handle DTX in the receiving path (downlink) at any time, regardless of whether DTX in the transmitting path is commanded or not.

full Table of Contents for  TS 26.450  Word version:   16.0.0

 

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