Multi-sound-source microphone directivity measurement method and device

The invention provides a multi-sound-source microphone directivity measurement method and device. The multi-sound-source microphone directivity measurement method comprises the following steps: providing a first sound source; providing a second sound source; placing a microphone to be measured at a...

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Bibliographische Detailangaben
Hauptverfasser:	FAN SHENGQUAN, ZENG JIANKAI, LIN YUXUAN, QIN HANTING, ZHANG CHUANXIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	The invention provides a multi-sound-source microphone directivity measurement method and device. The multi-sound-source microphone directivity measurement method comprises the following steps: providing a first sound source; providing a second sound source; placing a microphone to be measured at a measurement position; the first sound source and the second sound source are turned on, so that first sound waves generated by the first sound source and second sound waves generated by the second sound source are overlapped and interfered, and the transmission range of the overlapped and interfered first sound waves and second sound waves covers the measurement position; and measuring the electronic signal of the microphone to be measured to obtain the directivity of the microphone to be measured. A first sound wave generated by a first sound source and a second sound wave generated by a second sound source are overlapped and interfered with each other, so that the first sound wave and the second sound wave which