A speech processing unit, a method, and a program

Japanese Patent JP6157926

B2

According to an embodiment, a speech processing device includes an extractor, a detector, a generator, a converter, and a compensator. The extractor is configured to extract a speech parameter from a spectral envelope of input speech. The detector is configured to detect a missing band in which a component is missed in the spectral envelope. The generator is configured to generate a parameter for the missing band on the basis of a position of the missing band, statistical information created by using a parameter extracted from a spectral envelope of speech with no missing component, and the extracted speech parameter. The converter is configured to convert the generated parameter to a spectral envelope of the missing band. The compensator is configured to generate a spectral envelope supplemented with the missing band by combining the spectral envelopes of the missing band and of the input speech.

Yamato Otani
Masahiro Morita

JP2013109897A

July 05, 2017

May 24, 2013

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Toshiba Corporation

G10L19/005; G10L21/0388

JP2005530205A
JP2008122597A

US20030233234

Masatsune TAMURA et al.,"Sub-band Basis Spectrum Model for Pitch-synchronous Log-spectrum and Phase Based on Approximation of Sparse Coding",Proc. of Interspeech2010,2010年 9月26日,pp.2406-2409
大谷大和 他,"サブバンド基底スペクトルモデルを用いたHMM音声合成",日本音響学会2013年春季研究発表会講演論文集CD-ROM,2013年 3月 5日,pp.491-492
藤敦渉 他,"GMMに基づく最尤変換法による携帯電話音声の帯域拡張",情報処理学会研究報告,2007年 7月20日,Vol.2007,No.75,pp.63-68

Sakai International Patent Office

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