Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:G1
Session:
Number:G1-4
A Distance-Based Howling Canceller with Adaptive Bandwidth
Akira Sogami, Arata Kawamura, Youji Iiguni,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
We have been researched a distance-based howling canceller. We however have a problem about quality degradation of the howling canceller output. In this paper, to solve this problem, we propose an adaptive bandwidth of the notch filter. The adaptive bandwidth narrows when the distance becomes long. We evaluate the speech quality of the howling canceller output with the adaptive bandwidth. We also evaluate its capability of the howling cancellation with the adaptive bandwidth in a practical environment.