发明名称 |
Device and method for influencing an audio signal according to ambient noise amplifies or dampens audio signal frequencies selectively by mixing signals to suit ambient noise. |
摘要 |
In a reproduction chamber (24) a loudspeaker (20) transmits an audio signal (22), converted to an electrical signal (36) by a pick-up device (32) after sampling with ambient noise (28). After pick-up the audio signal passes to a mixer's (42) inverting input (44) and the electrical signal to a mixer's non-inverting input (40). An evaluator (52), connected downstream to the mixer, picks up a mixed signal from the mixer and triggers an equaliser (12).
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申请公布号 |
DE19832472(A1) |
申请公布日期 |
2000.01.27 |
申请号 |
DE19981032472 |
申请日期 |
1998.07.20 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
MONTAG, CHRISTOPH;HOLTMANNSPOETTER, HERMANN;MUSIELAK, JOERG |
分类号 |
H03G3/32;(IPC1-7):H03G3/32;H04R5/04 |
主分类号 |
H03G3/32 |
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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