Title :
A new algorithm for double talk detection and separation in the context of digital mobile radio telephone
Author :
Ezzaidi, Hassan ; Bourmeyster, Ivan ; Rouat, Jean
Author_Institution :
Dept. des Sci. Appliquees, Quebec Univ., Chicoutimi, Que., Canada
Abstract :
The paper describes a new technique that enhances the voice activity detection (VAD) performance between the remote speaker (received signal) and the local speaker (located in the vehicle) in the context of mobile radio telephone environment. We use an auditory pitch and voiced/unvoiced detection (APD) algorithm in conjunction with an autoregressive (AR) analysis in order to remove the remote speaker´s voice signal from the car hands-free microphone signal. The results are compared with a reference system that doesn´t include the APD
Keywords :
acoustic signal detection; acoustic signal processing; autoregressive processes; digital radio; echo suppression; land mobile radio; radiotelephony; telephone sets; voice communication; AR analysis; acoustic echo cancellation; adaptive filter; autoregressive analysis; car hands-free microphone signal; digital mobile radio telephone; double talk detection; double talk separation; local speaker; received signal; reference system; remote speaker; voice activity detection; voiced/unvoiced detection algorithm; Algorithm design and analysis; Databases; Land mobile radio; Microphones; Mobile handsets; Signal analysis; Speech analysis; Telephony; Vehicle detection; Vehicles;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.598911
