Interface for Barge-in Free Spoken Dialogue System Using Nullspace Based Sound Field Control and Beamforming

• Miyabe, Shigeki

• Saruwatari, Hiroshi

• Shikano, Kiyohiro

• Tatekura, Yosuke

Abstract

In this paper, we describe a new interface for a barge-in free spoken dialogue system combining multichannel sound field control and beamforming, in which the response sound from the system can be canceled out at the microphone points. The conventional method inhibits a user from moving because the system forces the user to stay at a fixed position where the response sound is reproduced. However, since the proposed method does not set control points for the reproduction of the response sound to the user, the user is allowed to move. Furthermore, the relaxation of strict reproduction for the response sound enables us to design a stable system with fewer loudspeakers than those used in the conventional method. The proposed method shows a higher performance in speech recognition experiments.

Journal

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E89-A (3), 716-726, 2006-03

  電子情報通信学会

Keywords

• spoken dialogue system
• barge-in
• sound field control
• beamforming
• nullspace

Details

• CRID: 1050577309353411840
• NII Article ID: 110004656528
• NII Book ID: AA10826239
• ISSN: 09168508
• HANDLE: 10061/7815
• Web Site: https://naist.repo.nii.ac.jp/records/3823
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles