Title:
SPEECH PROCESSING DEVICE, SPEECH PROCESSING METHOD, AND SPEECH PROCESSING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2017/046904
Kind Code:
A1
Abstract:
The purpose of the invention is to enable high-speed waveform generation while improving waveform reproducibility. A speech processing device according to an embodiment comprises a spectrum parameter calculation unit, a phase spectrum calculation unit, a group delay spectrum calculation unit, a band group delay parameter calculation unit, and a band group delay correction parameter calculation unit. The spectrum parameter calculation unit calculates a spectrum parameter. The phase spectrum calculation unit calculates a first phase spectrum. The group delay spectrum calculation unit calculates a group delay spectrum from the first phase spectrum on the basis of frequency components of the first phase spectrum. The band group delay parameter calculation unit calculates a band group delay parameter in a predetermined frequency band from the group delay spectrum. The band group delay correction parameter calculation unit calculates a band group delay correction parameter that corrects a difference between the first phase spectrum and a second phase spectrum reconstructed from the band group delay parameter.
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Inventors:
TAMURA MASATSUNE (JP)
MORITA MASAHIRO (JP)
MORITA MASAHIRO (JP)
Application Number:
PCT/JP2015/076361
Publication Date:
March 23, 2017
Filing Date:
September 16, 2015
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
G10L25/18; G10L13/06
Domestic Patent References:
| WO2014021318A1 | 2014-02-06 |
Foreign References:
| JPH11219200A | 1999-08-10 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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