发明名称 |
Sound monitoring system for sound field selection based on stored microphone data |
摘要 |
Monitoring accuracy degrades due to a noise where many sound sources exist other than those to be monitored. A sound monitoring system includes a microphone array having multiple microphones and a location-based abnormal sound monitoring section. The location-based abnormal sound monitoring section is supplied with an input signal from the microphone array via a waveform acquisition section and a network. Using the input signal, the location-based abnormal sound monitoring section detects a temporal change in a sound source direction histogram. Based on a detected change result, the location-based abnormal sound monitoring section checks for abnormality in a sound field and outputs a monitoring result. The processing section searches for a microphone array near the sound source to be monitored. The processing section selects a sound field monitoring function for the sound source to be monitored based on various data concerning a microphone belonging to the searched microphone array. |
申请公布号 |
US8682675(B2) |
申请公布日期 |
2014.03.25 |
申请号 |
US20100893114 |
申请日期 |
2010.09.29 |
申请人 |
TOGAMI MASAHITO;KAWAGUCHI YOHEI;HITACHI, LTD. |
发明人 |
TOGAMI MASAHITO;KAWAGUCHI YOHEI |
分类号 |
H04R1/32 |
主分类号 |
H04R1/32 |
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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