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Automatic detection of disturbing robot voice- and ping pong-effects in GSM transmitted speech
1997
5th European Conference on Speech Communication and Technology (Eurospeech 1997)
unpublished
This contribution reports about a method to automatically detect the disturbing Robot Voice and Ping Pong e ect which occur in GSM transmitted speech. Both e ects are caused by the frame substitution technique, recommended by the GSM standard: in these cases the transmitted speech m a y be modulated by a disturbing 50 Hz component. These modulations can be detected very easily in the frequency domain. By a framewise comparision of the modulation amplitude of an undisturbed clean speech signal
doi:10.21437/eurospeech.1997-466
fatcat:k7o4oilerrcnhmtu7syfjod4ym