发明名称 |
AUDIO CHARACTERISTIC ADJUSTMENT |
摘要 |
Sound reproduction in a noisy environment may be improved by detecting the noise level and deriving a control signal therefrom. The control signal may control the gain and frequency response of the reproduction amplifier by controlling an electronic potentiometer which provides a control function which varies from a signal of high reproduction quality towards a signal which has been subjected to contrast compression and which exhibits a roll-off towards the bass frequencies. |
申请公布号 |
AU5584980(A) |
申请公布日期 |
1980.09.04 |
申请号 |
AU19800055849 |
申请日期 |
1980.02.25 |
申请人 |
PHILIPS' GLOEILAMPENFABRIEKEN, N.V. |
发明人 |
DERK KLEIS;JOHANNIS ARIE VAN GORSEL |
分类号 |
G10L19/00;G10L11/00;H03G3/32;H03G9/02 |
主分类号 |
G10L19/00 |
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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