发明名称 |
Howling suppression apparatus and computer readable recording medium |
摘要 |
<p>A howling suppression apparatus suppresses a howling caused in an acoustic system including a sound collection device and a sound emission device. An estimation part generates an estimated signal by estimating a feedback sound reaching the sound collection device from the sound emission device. An adjustment part generates an estimated signal by adjusting the estimated signal. A spectrum subtraction part generates an acoustic signal using a result of subtracting a frequency spectrum of the estimated signal from a frequency spectrum of an acoustic signal. A filter part generates an acoustic signal by suppressing a component of a frequency band including a howling frequency F among the acoustic signal. An acoustic signal in which the acoustic signal is amplified by an amplifier is supplied to the sound emission device.</p> |
申请公布号 |
EP2086249(A2) |
申请公布日期 |
2009.08.05 |
申请号 |
EP20090150514 |
申请日期 |
2009.01.14 |
申请人 |
YAMAHA CORPORATION |
发明人 |
TANAKA, HIROBUMI;OKUMURA, HIRAKU |
分类号 |
H04R3/02 |
主分类号 |
H04R3/02 |
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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