Ego-noise reduction for a hose-shaped rescue robot using determined rank-1 multichannel nonnegative matrix factorization

Moe Takakusaki, Daichi Kitamura, Nobutaka Ono, Takeshi Yamada, Shoji Makino, Hiroshi Saruwatari

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

2 Citations (Scopus)

Abstract

A hose-shaped rescue robot is one of the robots that have been developed for disaster response in times of large-scale disasters such as a massive earthquake. This robot is suitable for entering narrow and dark places covered with rubble in a disaster site and for finding victims inside it. It can transmit ambient sound captured by its builtin microphones to its operator. However, there is a serious problem, that is, the inherent noise of this robot, such as vibration sound or fricative sound, is mixed with the transmitted voice, thereby disturbing the operator's perception of a call for help from a disaster victim. In this paper, we apply the multichannel nonnegative matrix factorization (NMF) with the rank-1 spatial constraint (determined rank-1 MNMF), which was proposed by Kitamura et al., to the reduction of the inherent noise.

Original languageEnglish
Title of host publication2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509020072
DOIs
Publication statusPublished - 2016 Oct 19
Externally publishedYes
Event15th International Workshop on Acoustic Signal Enhancement, IWAENC 2016 - Xi'an, China
Duration: 2016 Sep 132016 Sep 16

Publication series

Name2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016

Conference

Conference15th International Workshop on Acoustic Signal Enhancement, IWAENC 2016
Country/TerritoryChina
CityXi'an
Period16/9/1316/9/16

Keywords

  • Determined rank-1 MNMF
  • Ego-noise
  • Hose-shaped rescue robot
  • Noise reduction

ASJC Scopus subject areas

  • Signal Processing
  • Acoustics and Ultrasonics

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