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.
|
申请公布号 |
US8473285(B2) |
申请公布日期 |
2013.06.25 |
申请号 |
US201213424189 |
申请日期 |
2012.03.19 |
申请人 |
EVERY MARK;AVENDANO CARLOS;AUDIENCE, INC. |
发明人 |
EVERY MARK;AVENDANO CARLOS |
分类号 |
G10L21/02 |
主分类号 |
G10L21/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|