发明名称 |
Apparatus, method, and medium for distinguishing vocal sound from other sounds |
摘要 |
An apparatus, method, and medium for distinguishing a vocal sound. The apparatus includes: a framing unit dividing an input signal into frames, each frame having a predetermined length; a pitch extracting unit determining whether each frame is a voiced frame or an unvoiced frame and extracting a pitch contour from the voiced and unvoiced frames; a zero-cross rate calculator respectively calculating a zero-cross rate for each frame; a parameter calculator calculating parameters including a time length ratio of the voiced frame and the unvoiced frame determined by the pitch extracting unit, statistical information of the pitch contour, and spectral characteristics; and a classifier inputting the zero-cross rates and the parameters output from the parameter calculator and determining whether the input signal is a vocal sound.
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申请公布号 |
US2005187761(A1) |
申请公布日期 |
2005.08.25 |
申请号 |
US20050051475 |
申请日期 |
2005.02.07 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SHI YUAN Y.;LEE YONGBEOM;LEE JAEWON |
分类号 |
G10L11/04;G10L11/06;G10L15/00;G10L15/02;G10L15/28;(IPC1-7):G10L11/04 |
主分类号 |
G10L11/04 |
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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