Array panel of microphones and acoustic wave imager

Abstract

The application provides an array panel of a microphone array and a sound wave imager. According to the application, in addition to a plurality of sound pickup holes corresponding to each microphone of the microphone array, the panel body of the array panel can be arranged with a plurality of sound wave diffusion structures distributed in a staggered manner with the plurality of sound pickup holes on the outer surface facing away from the microphone array. When the sound wave generated by the sound source propagates to the outer surface of the panel body of the array panel, a part of the sound wave passing through the sound pickup hole can be captured by the microphone, and the remaining sound wave outside the sound pickup hole can be subjected to energy attenuation through diffuse reflection at the sound wave diffusion structure, so that the echo energy formed after reflection is weakened due to the energy attenuation caused by diffuse reflection, thereby reducing the difference in echo energy interfering with different microphones in the microphone array, and further helping to reduce the audio acquisition noise caused by the echo interference of the sound wave and helping to improve the sound pickup consistency of the microphone array.

Images