发明名称 |
Spectral content modification for robust feedback channel estimation |
摘要 |
A listening device includes an input and output transducers and a forward path defined between the transducers. The forward path may include a signal processing unit processing an SPU-input signal originating from the electric input signal in a time-frequency representation having successive time frames each having a frequency spectrum of the signal in the time frame in question. The signal processing unit includes a spectral content modification unit to modify values of the signal of one or more regions of the frequency spectrum of a given time frame so that the modified values are less correlated to the corresponding time-frequency regions of the input signal. A feedback path estimation unit is uses he improved processed output signal in the feedback estimation. The spectral content modification unit may base the modification on a model of the human auditory system so that the modifications are not perceptible by the user. |
申请公布号 |
US8422707(B2) |
申请公布日期 |
2013.04.16 |
申请号 |
US20090506424 |
申请日期 |
2009.07.21 |
申请人 |
ELMEDYB THOMAS BO;JENSEN JESPER;OTICON A/S |
发明人 |
ELMEDYB THOMAS BO;JENSEN JESPER |
分类号 |
H04R25/00;H04B15/00 |
主分类号 |
H04R25/00 |
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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