Detection of howling frequency using temporal variations in power spectrum

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Indoor audio feedback is a common problem in many audio amplification systems. The audio feedback can be out of control in some indoor conditions, which results in howling. Also, the howling frequency is subject to variation by the changes of indoor environments. Most conventional methods attempt to eliminate the howling, but they do not provide a way to predict the occurrence of howling. This paper presents a novel method to predict the howling frequency using temporal variations in power spectrum.

Original languageEnglish
Title of host publicationUbiquitous Computing and Multimedia Applications - Second International Conference, UCMA 2011, Proceedings
Pages46-51
Number of pages6
EditionPART 2
DOIs
StatePublished - 2011
Event2nd International Conference on Ubiquitous Computing and Multimedia Applications, UCMA 2011 - Daejeon, Korea, Republic of
Duration: 13 Apr 201115 Apr 2011

Publication series

NameCommunications in Computer and Information Science
NumberPART 2
Volume151 CCIS
ISSN (Print)1865-0929

Conference

Conference2nd International Conference on Ubiquitous Computing and Multimedia Applications, UCMA 2011
Country/TerritoryKorea, Republic of
CityDaejeon
Period13/04/1115/04/11

Keywords

  • acoustic feedback circuit
  • Howling
  • moving average
  • power spectrum

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