发明名称 |
Method for Jointly Optimizing Noise Reduction and Voice Quality in a Mono or Multi-Microphone System |
摘要 |
The present technology provides adaptive noise reduction of an acoustic signal using a sophisticated level of control to balance the tradeoff between speech loss distortion and noise reduction. The energy level of a noise component in a sub-band signal of the acoustic signal is reduced based on an estimated signal-to-noise ratio of the sub-band signal, and further on an estimated threshold level of speech distortion in the sub-band signal. In embodiments, the energy level of the noise component in the sub-band signal may be reduced to no less than a residual noise target level. Such a target level may be defined as a level at which the noise component ceases to be perceptible.
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申请公布号 |
US2011257967(A1) |
申请公布日期 |
2011.10.20 |
申请号 |
US20100832901 |
申请日期 |
2010.07.08 |
申请人 |
EVERY MARK;AVENDANO CARLOS |
发明人 |
EVERY MARK;AVENDANO CARLOS |
分类号 |
G10L21/02 |
主分类号 |
G10L21/02 |
代理机构 |
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主权项 |
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