发明名称 |
WIND NOISE SUPPRESSING CIRCUIT IN SOUND COLLECTING DEVICE |
摘要 |
PURPOSE:To obtain a wind noise suppressing circuit capable of applying proper level suppressing processing to a wind noise and attaining sound collection with always high sound quality in a sound collecting device. CONSTITUTION:The wind noise suppressing circuit is provided with a fuzzy rule storing part 62 storing plural fuzzy control rules and a fuzzy inference processing part 61 for executing fuzzy inference. The level AH of a high frequency component and the level AL of a low frequency component are regulated as the variabls of the antecedent part of a control rule and the evaluation level W of wind noise is regulated as the variable of its consequent part. The evaluation level W determined by the processing part 61 is supplied to an attenuator 7 and attenuation processing corresponding to the level W is applied to the low frequency component outputted from a microphone. |
申请公布号 |
JPH0630493(A) |
申请公布日期 |
1994.02.04 |
申请号 |
JP19920184904 |
申请日期 |
1992.07.13 |
申请人 |
SANYO ELECTRIC CO LTD |
发明人 |
KIKUCHI KENICHI |
分类号 |
G05B13/02;G10K11/16;G10K11/178;H03H17/00;H03H17/02;H03H21/00;H04R3/00;(IPC1-7):H04R3/00 |
主分类号 |
G05B13/02 |
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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