Title :
Concepts of improving hands-free speech communication
Author_Institution :
Forschungsinst. der Deutschen Bundespost Telekom, Berlin, Germany
Abstract :
The author discusses feedback and echo control as well as noise reduction systems, which allow the same speech quality and loudness in hands-free communication which exists in a natural dialogue. The effectiveness of feedback compensation, echo cancellation, and multichannel adaptive noise filtering schemes is analyzed and was compared in acoustical demonstrations with that of conventional methods like echo suppression or gain control
Keywords :
adaptive filters; compensation; echo suppression; feedback; interference suppression; telephone sets; voice communication; echo cancellation; echo control; feedback compensation; hands-free speech communication; multichannel adaptive noise filtering; noise reduction systems; Adaptive control; Communication system control; Control systems; Echo cancellers; Feedback; Noise cancellation; Noise reduction; Oral communication; Programmable control; Speech enhancement;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230435
