发明名称 |
Audio decoder and audio decoding method |
摘要 |
First determiner 121 provisionally determines whether a current processing unit is a stationary noise region based on a determination result on stationary characteristics of a decoded signal. Based on the provisional determination result and a determination result on periodicity of the decoded signal, second determiner 124 further determines whether the current processing unit is a stationary noise region, whereby a decoded signal including a stationary speech signal such as a stationary vowel is distinguished from a stationary noise, and thus the stationary noise region is detected accurately. <IMAGE> |
申请公布号 |
AU1852002(A) |
申请公布日期 |
2002.06.11 |
申请号 |
AU20020018520 |
申请日期 |
2001.11.30 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
HIROYUKI EHARA;KAZUTOSHI YASUNAGA;KAZUNORI MANO;YUSUKE HIWASAKI |
分类号 |
G10L25/84;G10L19/012;G10L19/04;G10L19/12;G10L25/78;G10L25/90 |
主分类号 |
G10L25/84 |
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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