Title:
VOICE SYNTHESIS DEVICE, METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2007/029633
Kind Code:
A1
Abstract:
There are provided a device and a method for generating a high-quality synthesized
voice having a smooth waveform connection by using a small calculation amount
and a small-size phoneme piece database. The device includes a pitch frequency
calculation unit (1), a pitch synchronization position calculation unit (3),
a unit waveform storage unit (6), a unit waveform selection unit (4), a unit waveform
generation unit (50), and a waveform synthesis unit (2). The unit waveform generation
unit (50) has a conversion ratio calculation unit (501) for calculating a sampling
rate conversion ratio from the pitch frequency and the pitch synchronization
position, a sampling rate conversion unit (502) for converting the sampling
rate of the unit waveform inputted according to the sampling conversion rate,
and a unit waveform reselection unit (503) for selecting a unit waveform having
a phase required for obtaining a synthesized voice waveform having a smooth unit
waveform connection. The waveform synthesis unit (2) arranges the reselected
unit waveform on the pitch synchronization position so as to generate a synthesized
voice.
Inventors:
KATO MASANORI (JP)
TSUKADA SATOSHI (JP)
TSUKADA SATOSHI (JP)
Application Number:
PCT/JP2006/317432
Publication Date:
March 15, 2007
Filing Date:
September 04, 2006
Export Citation:
Assignee:
NEC CORP (JP)
KATO MASANORI (JP)
TSUKADA SATOSHI (JP)
KATO MASANORI (JP)
TSUKADA SATOSHI (JP)
International Classes:
G10L13/07; G10L13/06; G10L13/10; G10L21/045
Foreign References:
| JPH07219576A | 1995-08-18 |
Attorney, Agent or Firm:
KATO, Asamichi (daVinci BOSEI 7th Floor,, 20-12 Shin-Yokohama 3-chome,, Kohoku-ku, Yokohama-sh, Kanagawa 33, JP)
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