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    Standard sound source

    Standard sound source

    The 604/611 standard sound source launched by our company can simulate the far-field sound source of the human mouth, which is suitable for testing the acoustic parameter indicators of the microphone test with a distance of 10cm-20cm. The frequency response (FR) curve and other properties comply with the requirements of IEEE 269, 661 and the requirement for "mouth reference point" for transmitting acoustic signals in ITU-T P51. It is a standard sound source for acoustic measurement.
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