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Hi, The following paper & links may give some idea regarding howling control. I too don't have much idea about howling control. I want to know the algorithms used for howling control. I hope link would be giving some brief idea [5] "Acoustic Echo Canceller for Hands-free Mobile Radiotelephony", Soren Holdt Jensen, Electronics Institute, Technical University of Denmark, Building 349, DK-2800, Lyngby, Denmark. Found at pages 1629-1632, Signal Processing VI: Theories and Applications, J. Vandewalle, R. Boite, M. Moonen, A. Oosterlinck (eds), 1992 Elsevier Science Publishers B.V. "Adaptive periodic noise cancellation for the control of acoustic howling", Proc. EUSIPCO-90, Barcelona, Spain, 1990, pages 1979-1982 http://www.doc.ic.ac.uk/~nd/surprise_95/journal/vol4/kc1/report.html#r http://www.icsi.berkeley.edu/~storn/bisc1.ps.gz Antony ondal95 <> wrote:I am a MSc student in South Korea. And my research topic is Howling Control. But there is no one to help me even my professor. There are many theses about howling control. But I can't find fundamental theory of experimental method for basic case. ex) How to detect the howling? Can the howling control be possible if the microphone is moving? In case of one channel microphone and loudspeaker, what method is used to cancel the howling? Plz, give me an answer. _____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: To Post: To Leave: Archives: http://www.yahoogroups.com/group/echocancel Other DSP-Related Groups: http://www.dsprelated.com |