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Acoustic equipment, resonance sound detection method, the recorded medium resonance sound detection program and resonance sound detection program
Acoustic equipment, resonance sound detection method, the recorded medium resonance sound detection program and resonance sound detection program
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机译：音响设备，共鸣声音检测方法，记录介质共鸣声音检测程序和共鸣声音检测程序
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摘要
PROBLEM TO BE SOLVED: To provide an acoustic device and a resonance sound reduction method which detect a frequency band in which an unpleasant tone (resonance sound) occurs and reduce a component in that frequency band from a reproduction signal, making it possible to reduce the occurrence of the unpleasant tone easily.;SOLUTION: A frequency response measurement unit 6 measures the admittance of a speaker 2 and the second and third order distortion frequency response of a current flowing in the speaker 2. From the measured admittance and second and third order distortion frequency response, a control unit 7 detects a frequency band in which a resonance sound occurs. A DSP unit 8 attenuates a component in the detected frequency band from a reproduction signal reproduced by the speaker 2.;COPYRIGHT: (C)2014,JPO&INPIT
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