发明名称 |
Method, Apparatus and Computer Program Product for Providing Low Frequency Expansion of Speech |
摘要 |
An apparatus for providing low frequency expansion of speech includes a nonlinear function element, a band-pass filter element and a level control element. The non-linear function element is configured to receive a signal including at least two harmonic components and to produce a signal including at least one lower frequency harmonic component having a lower frequency than a highest frequency component of the at least two harmonic components responsive to the signal including at least two harmonic components. The band-pass filter element is in communication with the non-linear function element and configured to filter the signal including the at least one lower frequency harmonic component. The level control element is configured to apply a level control to alter the filtered signal based on a feature vector associated with an input speech signal.
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申请公布号 |
US2007299655(A1) |
申请公布日期 |
2007.12.27 |
申请号 |
US20060425809 |
申请日期 |
2006.06.22 |
申请人 |
NOKIA CORPORATION |
发明人 |
LAAKSONEN LAURA;HIIPAKKA JARMO;MYLLYLA VILLE;MAKINEN KALLE I. |
分类号 |
G10L19/14 |
主分类号 |
G10L19/14 |
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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