Ensemble integration of calibrated speaker localization and statistical speech detection in domestic environments

Yuuki Tachioka, Tomohiro Narita, Shinji Watanabe, Jonathan Le Roux

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper describes speaker localization and speech detection techniques for domestic environments. In real environments, it is hard to localize speakers because reverberation causes discrepancy from the simple spherical wave assumption. We propose a template-based method that calibrates the localization errors included in conventional methods. In addition, we use statistical speech detection methods to deal with noises. However, in this challenge, there are five rooms and leaked utterances from other rooms must be rejected. This kind of rejection is hard to perform by only using speech detection results. To address this problem, we also propose a method that integrates speech localization and speech detection using a minimum cost criterion or a classifier-based strategy. The proposed method achieved an accuracy of 0.712 for speaker localization and an F value of 0.743 for speech detection on the development set compared with the baseline 0.559 and 0.570, and 0.666 and 0.706 on the test set compared with the baseline 0.517 and 0.602.

Original languageEnglish
Title of host publication2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014
PublisherIEEE Computer Society
Pages162-166
Number of pages5
ISBN (Print)9781479931095
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014 - Villers-les-Nancy, France
Duration: 2014 May 122014 May 14

Publication series

Name2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014

Other

Other2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014
CountryFrance
CityVillers-les-Nancy
Period14/5/1214/5/14

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Keywords

  • Speaker localization
  • calibration
  • rejection
  • speech detection

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Tachioka, Y., Narita, T., Watanabe, S., & Le Roux, J. (2014). Ensemble integration of calibrated speaker localization and statistical speech detection in domestic environments. In 2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014 (pp. 162-166). [6843272] (2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014). IEEE Computer Society. https://doi.org/10.1109/HSCMA.2014.6843272