发明名称 |
A NOISE SUPPRESSING METHOD AND A NOISE SUPPRESSOR FOR APPLYING THE NOISE SUPPRESSING METHOD |
摘要 |
<p>A method for suppressing noise of a first signal captured via a primary microphone is provided. A primary and a reference microphone are arranged on a communication device to capture noise and intermittent speech. A determination is made whether the first signal comprises non-stationary signal components or substantially stationary noise, and whether the first signal comprises substantially far-field noise in case it was determined that it comprises non-stationary signal components. A noise power spectrum estimate of the first signal is updated with a stationary noise power spectrum estimate if the first signal is considered to comprise substantially stationary noise or a far-field noise power spectrum estimate if the first signal is considered to comprise substantially far-field noise. A frequency response is computed on the basis of the estimated noise power spectrum. Noise from the first signal is suppressed by applying the frequency response on the first signal.</p> |
申请公布号 |
EP2659487(A4) |
申请公布日期 |
2013.12.18 |
申请号 |
EP20100861445 |
申请日期 |
2010.12.29 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
YERMECHE, ZOHRA;AAHGREN, PER;ERIKSSON, ANDERS |
分类号 |
G10L21/02;H04R3/00 |
主分类号 |
G10L21/02 |
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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