发明名称 |
Factor setting device and noise suppression apparatus |
摘要 |
In a noise suppression apparatus, an index setter sets an exponent K that is a positive value. A factor setter variably sets a suppression factor according to the exponent K. A noise suppressor generates an audio signal from which a noise component is suppressed through noise suppression process of suppressing a Kth power of an amplitude of the noise component at each frequency thereof in a Kth power of an amplitude of the audio signal at each frequency thereof to a degree determined according to the suppression factor set by the factor setting part. Preferably, the index setter sets the exponent K to a value less than 0.1.
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申请公布号 |
US2011211711(A1) |
申请公布日期 |
2011.09.01 |
申请号 |
US20110932473 |
申请日期 |
2011.02.25 |
申请人 |
YAMAHA CORPORATION;NARA INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
INOUE TAKAYUKI;TAKAHASHI YU;SARUWATARI HIROSHI;KONDO KAZUNOBU |
分类号 |
H04B15/00 |
主分类号 |
H04B15/00 |
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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