发明名称 |
FFT-based technique for adaptive directionality of dual microphones |
摘要 |
The present invention comprises an adaptive directionality dual microphone system in which the time domain data from the first and second microphones is converted into frequency domain data. The frequency domain data is then manipulated to produce a noise-canceled signal which is converted in an Inverse Fourier Transform block into noise-cancel time domain data.
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申请公布号 |
US6668062(B1) |
申请公布日期 |
2003.12.23 |
申请号 |
US20000567860 |
申请日期 |
2000.05.09 |
申请人 |
GN RESOUND AS |
发明人 |
LUO FA-LONG;EDWARDS BRENT;YANG JUN;MICHAEL NICK |
分类号 |
H04R3/00;H04R25/00;H04R29/00;(IPC1-7):H04R3/00 |
主分类号 |
H04R3/00 |
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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