Title:
VOICE SEARCH DEVICE AND VOICE SEARCH METHOD
Document Type and Number:
WIPO Patent Application WO/2007/015489
Kind Code:
A1
Abstract:
It is possible to provide a voice search device having a high search accuracy not affected
by a difference between individual voices without requiring a standard voice
pattern. The voice search device includes partial voice search means for searching
partial voice data in a voice feature amount space from pitch equalization search
object voice data in which a pitch cycle of a voiced sound of search object voice
data is equalized. The partial voice data has a distance scale is not greater than
a predetermined threshold value for pitch equalization query voice data in which
a pitch cycle of a voiced sound of query voice data is equalized. By equalizing the
pitch cycle, it is possible to perform a voice search with a high accuracy not affected
by a difference of voice range between a male and a female or individuals.
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Inventors:
SATO YASUSHI (JP)
Application Number:
PCT/JP2006/315228
Publication Date:
February 08, 2007
Filing Date:
August 01, 2006
Export Citation:
Assignee:
KYUSHU INST TECHNOLOGY (JP)
SATO YASUSHI (JP)
SATO YASUSHI (JP)
International Classes:
G10L15/00; G06F17/30; G10L15/02; G10L15/10; G10L15/20; G10L25/54; G10L25/90
Foreign References:
| JP2834471B2 | 1998-12-09 | |||
| JP3252282B2 | 2002-02-04 | |||
| JPS5999500A | 1984-06-08 |
Other References:
SINGER H. ET AL.: "Pitch dependent phone modelling for HMM-based speech recognition", THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN (E), vol. 15, no. 2, March 1994 (1994-03-01), pages 77 - 86, XP003007849
Attorney, Agent or Firm:
ISHIDA, Kazuto (Kitakyushu Science and Research Park Collaboration Center 2-1, Hibikino, Wakamatsu-k, Kitakyushu-shi Fukuoka 35, JP)
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