Title :
Time-domain steering of a differential beamformer for speech enhancement and source separation
Author :
Gómez, Pedro ; Alvarez, Agustin ; Martinez, Rafael ; Nieto, Victor ; Rodellar, Victoria
Author_Institution :
Dept. de Arquitectura y Tecnologia de Sistemas Informaticos, Univ. Politecnica de Madrid, Madrid, Spain
Abstract :
The paper is devoted to showing the possibilities for optimally steering a first order difference beamformer (FODB) using a time-domain technique based on the minimization of the error output on the angular range of interest. This structure may be used in source separation, speaker tracking, or speech enhancement with application in robust speech recognition, demotic control, or video-conferencing, among other fields.
Keywords :
beam steering; minimisation; source separation; speech enhancement; time-domain analysis; demotic control; error minimization; first order differential beamformer; robust speech recognition; source separation; speaker tracking; speech enhancement; time-domain steering; video-conferencing; Acoustic sensors; Frequency; Phased arrays; Propagation delay; Robust control; Source separation; Speech enhancement; Speech recognition; Time domain analysis; Transfer functions;
Conference_Titel :
Signal Processing, 2002 6th International Conference on
Print_ISBN :
0-7803-7488-6
DOI :
10.1109/ICOSP.2002.1181059
