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TS 06.94 (SA4)
Voice Activity Detector (VAD) for Adaptive Multi Rate (AMR) speech traffic channels

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(P) GSM Rel-98 v7.1.1  1999/12  28 p.


Rapporteur:  USAI, Paolino
Descendant:  TS 26.094

This TS specifies two alternatives for the Voice Activity Detector (VAD) to be used in the Discontinuous Transmission (DTX) as described in TS 06.93. Implementors of mobile station and infrastructure equipment conforming to the AMR specifications can choose which of the two VAD options to implement. There are no interoperability factors associated with this choice.

The requirements are mandatory on any VAD to be used either in GSM Mobile Stations (MS)s or Base Station Systems (BSS)s that utilize the AMR speech traffic channel.