Coloration detection in public-address system using cumulative harmonic analysis

Howling control is a critical part of any public-address (PA) system. To detect a howling frequency of a PA system before having howling, the author has previously proposed an effective method based on spectral accumulation. This paper shows some results of the howling detection through a practical...

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Bibliographic Details
Published in2014 IEEE 3rd Global Conference on Consumer Electronics (GCCE) pp. 430 - 431
Main Author Takahashi, Yoshinori
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2014
Subjects
Estimation
Frequency estimation
Harmonic analysis
Histograms
Spectrogram
Speech
System-on-chip
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Summary:Howling control is a critical part of any public-address (PA) system. To detect a howling frequency of a PA system before having howling, the author has previously proposed an effective method based on spectral accumulation. This paper shows some results of the howling detection through a practical experiment. In this practical experiment, the proposed method was able to estimate the coloration frequency and eliminate the coloration by the notch filter.
ISSN:2378-8143
2693-0854
DOI:10.1109/GCCE.2014.7031191