发明名称 |
MICROPHONE ARRAY NOISE SUPPRESSION USING NOISE FIELD ISOTROPY ESTIMATION |
摘要 |
Noise is suppressed from a microphone array by estimating a noise field isotropy. In some examples audio is received from a plurality of microphones. A power spectral density of a beamformer output is determined and a power spectral density of microphone noise differences is determined. A noise power spectral density is determined using a transfer function and the noise power spectral density is applied to the beamformer output power spectral density to produce a power spectral density output of the received audio with reduced noise. |
申请公布号 |
WO2016174491(A1) |
申请公布日期 |
2016.11.03 |
申请号 |
WO2015IB00917 |
申请日期 |
2015.04.29 |
申请人 |
INTEL CORPORATION |
发明人 |
SALISHEV, Sergey |
分类号 |
H04R1/40;G10L21/0208;H04R3/00 |
主分类号 |
H04R1/40 |
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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