发明名称 |
Fast and accurate extraction of formants for speech recognition using a plurality of complex filters in parallel |
摘要 |
A method and apparatus are provided for determining an instantaneous frequency and an instantaneous bandwidth of a speech resonance of a speech signal. The method includes receiving a speech signal having a real component; filtering the speech signal so as to generate a plurality of filtered signals such that the real component and an imaginary component of the speech signal are reconstructed; and generating a first estimated frequency and a first estimated bandwidth of a speech resonance of the speech signal based on both a first filtered signal of the plurality of filtered signals and a single-lag delay of the first filtered signal. |
申请公布号 |
US8311812(B2) |
申请公布日期 |
2012.11.13 |
申请号 |
US20090629006 |
申请日期 |
2009.12.01 |
申请人 |
KROEKER JOHN P.;SLIFKA JANET;MCGOWAN RICHARD S.;ELIZA CORPORATION |
发明人 |
KROEKER JOHN P.;SLIFKA JANET;MCGOWAN RICHARD S. |
分类号 |
G10L15/02;G10L19/02 |
主分类号 |
G10L15/02 |
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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