发明名称 |
DYNAMIC SOUND CONTROLLER AND METHOD THEREFOR |
摘要 |
<p>DYNAMIC SOUND CONTROLLER AND METHOD THEREFOR A dynamic sound controller is designed to automatically adjust and shape the spectral distribution and amplitude of random masking noise before delivery via speakers to the environment of a room according to a preprogrammed timing sequence. In addition, the sound controller is capable of operating as a security and fire alarm system and is further capable of mixing a predetermined amount of background music and paging signals into the same set of speakers. The source controller of the present invention is further adaptable to a variety of environmental detectors which adjusts and shapes the noise in response to such factors as temperature, humidity, light level, ionization level and background noise level. A method for shaping spectral distribution and for adjusting amplitude of masking noise in relation to the measured ambient and intrusion noise levels is disclosed.</p> |
申请公布号 |
CA1084849(A) |
申请公布日期 |
1980.09.02 |
申请号 |
CA19770283910 |
申请日期 |
1977.08.02 |
申请人 |
DYNA-SYSTEMS, INC. |
发明人 |
MCGREGOR, HOWARD N.;CHANAUD, ROBERT C. |
分类号 |
G08B29/00;(IPC1-7):08B29/00 |
主分类号 |
G08B29/00 |
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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