发明名称 |
Method and apparatus for tracking pitch in audio analysis |
摘要 |
A computationally efficient and robust pitch detection and tracking system and related methods are presented. According to certain exemplary implementations a method is presented comprising identifying an initial set of pitch period candidates using a first estimation algorithm, filtering the initial set of candidates and passing the filtered candidates through a second, more accurate pitch estimation algorithm to generate a final set of pitch period candidates from which the most likely pitch value is selected. |
申请公布号 |
US6917912(B2) |
申请公布日期 |
2005.07.12 |
申请号 |
US20010843212 |
申请日期 |
2001.04.24 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
CHANG ERIC I-CHAO;ZHOU JIAN-LAI |
分类号 |
G10L25/90;(IPC1-7):G10L11/04 |
主分类号 |
G10L25/90 |
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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