发明名称 |
NOISE SIGNAL ANALYZER, NOISE SIGNAL SYNTHESIZER, NOISE SIGNAL ANALYZING METHOD, AND NOISE SIGNAL SYNTHESIZING METHOD |
摘要 |
An FFT section (102) converts a windowed input noise signal to a frequency spectrum. A spectrum model storage section (103) holds model information concerning a spectrum model. A spectrum model sequence calculating section (104) calculates a spectrum model number sequence corresponding to the amplitude spectrum sequence of the input noise signal by using model information stored in the spectrum model storage section (103). A continuation length model/transition probability calculating section (105) outputs a model parameter by using a spectrum model number sequence calculated by the spectrum model sequence calculating section (104). Thus, a background noise signal with high auditory quality is synthesized.
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申请公布号 |
WO0221091(A1) |
申请公布日期 |
2002.03.14 |
申请号 |
WO2001JP07630 |
申请日期 |
2001.09.04 |
申请人 |
MATSUSHITA COMMUNICATION INDUSTRIAL CO., LTD.;NAGOYA UNIVERSITY;YOSHIDA, KOJI;ITAKURA, FUMITADA |
发明人 |
YOSHIDA, KOJI;ITAKURA, FUMITADA |
分类号 |
G10L11/00;G10L13/00;G10L19/00;H03M7/30;(IPC1-7):G01L13/00;G01L21/02 |
主分类号 |
G10L11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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