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Speech synthesis dictionary creation device, speech synthesizer, speech synthesis dictionary creation method

A technology of speech synthesis and creator, used in speech synthesis, speech analysis, instruments, etc.

Inactive Publication Date: 2016-01-27
KK TOSHIBA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, on the downside, high-quality bilingual data is required to improve the quality of synthesized speech

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  • Speech synthesis dictionary creation device, speech synthesizer, speech synthesis dictionary creation method
  • Speech synthesis dictionary creation device, speech synthesizer, speech synthesis dictionary creation method
  • Speech synthesis dictionary creation device, speech synthesizer, speech synthesis dictionary creation method

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Embodiment Construction

[0015] First, the background leading to the present invention will be described. The HMM described above is a source-filter speech synthesis system. The speech synthesis system receives a sound source signal (excitation source) as an input, and the sound source signal is generated by an impulsive sound source or a noise source, etc., wherein the impulsive sound source represents the sound source component generated by the vibration of the vocal cords, and the noise source represents the sound source component generated by air turbulence sound source, and the speech synthesis system performs filtering using parameters of a spectral envelope representing vocal tract characteristics and the like to generate a speech waveform.

[0016] Examples of filters using parameters of the spectral envelope include all-pole filters, grid filters for PARCOR coefficients, LSP synthesis filters, log-magnitude approximation filters, Mel all-pole filters, Mel-logarithmic Spectral Approximation F...

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Abstract

The invention describes a speech synthesis dictionary creation device, a speech synthesizer, and a speech synthesis dictionary creation method. According to an embodiment, a device includes a table creator, an estimator, and a dictionary creator. The table creator is configured to create a table based on similarity between distributions of nodes of speech synthesis dictionaries of a specific speaker in respective first and second languages. The estimator is configured to estimate a matrix to transform the speech synthesis dictionary of the specific speaker in the first language to a speech synthesis dictionary of a target speaker in the first language, based on speech and a recorded text of the target speaker in the first language and the speech synthesis dictionary of the specific speaker in the first language. The dictionary creator is configured to create a speech synthesis dictionary of the target speaker in the second language, based on the table, the matrix, and the speech synthesis dictionary of the specific speaker in the second language.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims the benefit of priority from Japanese Patent Application No. 2014-144378 filed on July 14, 2014, the entire contents of which are incorporated herein by reference. technical field [0003] The embodiments described herein generally relate to a speech synthesis dictionary creation device, a speech synthesizer, and a speech synthesis dictionary creation method. Background technique [0004] Speech synthesis techniques for converting certain text into synthesized waveforms are known. In order to reproduce the quality of a certain user's voice by using the speech synthesis technology, it is necessary to create a speech synthesis dictionary from the user's recorded speech. In recent years, research and development of speech synthesis technology based on a Hidden Markov Model (HMM) has been increasingly conducted, and the quality of the technology has also been improved. Furthermore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L13/06G10L13/08G10L13/047
CPCG10L13/00
Inventor 桥健太郎田村正统大谷大和
Owner KK TOSHIBA
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