Data processing: speech signal processing – linguistics – language – Speech signal processing – Synthesis
Patent
1998-04-14
2000-05-23
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Synthesis
704220, 704219, 704232, G10L 914
Patent
active
060675187
ABSTRACT:
A sample speech is analyzed by a speech analyzing unit to obtain sample characteristic parameters, and a coding distortion is calculated from the sample characteristic parameters in each of a plurality of coding modules. The sample characteristic parameters and the coding distortions are statistically processed by a statistical processing unit to obtain a coding module selecting rule. Thereafter, when a speech is analyzed by the speech analyzing unit to obtain characteristic parameters, an appropriate coding module is selected by a coding module selecting unit from the coding modules according to the coding module selecting rule on condition that a coding distortion for the characteristic parameters is minimized in the appropriate coding module. Thereafter, the characteristic parameters of the speech are coded in the appropriate coding module, and a coded speech is obtained. When the coded speech is decoded, a reproduced speech is obtained. Accordingly, because an appropriate coding module can be easily selected from a plurality of coding modules according to the coding module selecting rule, any allophone occurring in a reproduced speech can be prevented at a low calculation volume.
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Boll S. F.: "Supperssion of Acoustic Noise in Speech Using Spectral Subtraction" IEEE Transactions on Acoustics, Speech and Signal Processing, vol. 27, No. 2, Apr. 1, 1979, pp. 113-120, XP000560457.
Chawan Vijay B
Hudspeth David R.
Matsushita Electric - Industrial Co., Ltd.
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