发明名称 |
A GENERATING METHOD AND DEVICE OF BACKGROUND NOISE EXCITATION SIGNAL |
摘要 |
A method and apparatus for generating an excitation signal for background noise are provided. The method includes: generating a quasi excitation signal by utilizing coding parameters in a speech coding/decoding stage and a transition length of an excitation signal; and obtaining the excitation signal for background noise in a transition stage by generating a weighted sum of the quasi excitation signal and a random excitation signal of a background noise frame. Moreover, the apparatus includes: a quasi excitation signal generation unit and a transition stage excitation signal acquisition unit. Through the synthesizing scheme of comfortable background noise according to the present invention, the transition of a synthesized signal from speech to background noise could be more natural, smooth and continuous, which makes the listeners feel more comfortable.
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申请公布号 |
EP2261895(A1) |
申请公布日期 |
2010.12.15 |
申请号 |
EP20090722292 |
申请日期 |
2009.03.18 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
DAI, JINLIANG;ZHANG, LIBIN;SHLOMOT, EYAL;WANG, LIN |
分类号 |
G10L19/00;G10L19/08;G10L19/14;H03M7/30 |
主分类号 |
G10L19/00 |
代理机构 |
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主权项 |
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地址 |
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