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Development of a Broadcast Sound Receiver for Elderly Persons

  • Tomoyasu Komori
  • Atsushi Imai
  • Nobumasa Seiyama
  • Reiko Takou
  • Tohru Takagi
  • Yasuhiro Oikawa
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7382)

Abstract

With the aim of making speech easier to listen to on a TV receiver, a noble method for back-ground-sound suppression processing was proposed, and the results of evaluation tests using broadcast-program sound showed that a prototype device was able to adjust a suitable level of background sound for elderly people. Our proposed method was able to suppress the magnitude of sound components with low correlation by using 2ch stereo signals and perform gain-control only on the speechless intervals. The preparatory evaluation tests confirm that it is possible to suitably reduce program background volume by the proposed method. On the basis of this result, a device for suppressing background sound by decoding the transport stream (TS) of a broadcast program was prototyped. The results of evaluation tests using this device demonstrate that the magnitude of background sound can be adjusted to a suitable level for elderly people.

Keywords

elderly people phoneme recognition loudness stereo correlation subjective evaluation background-sound suppression 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Tomoyasu Komori
    • 1
  • Atsushi Imai
    • 2
  • Nobumasa Seiyama
    • 2
  • Reiko Takou
    • 2
  • Tohru Takagi
    • 1
  • Yasuhiro Oikawa
    • 3
  1. 1.NHK Engineering Service, INCSetagaya-kuJapan
  2. 2.NHK Science and Technical Research LaboratoriesSetagaya-kuJapan
  3. 3.Department of Intermedia Art and ScienceWaseda UniversityShinjuku-kuJapan

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