Abnormal sound detection device

Abstract

The invention discloses a device for detecting abnormal sounds of an audio, and relates to the car audio detection field. The device comprises a soundproof cover, a vibration gauge, a noise detection device and an analysis instrument, wherein the audio is covered with the soundproof cover; the soundproof cover and the audio are fixed on a working table at the upper part of the vibration gauge; the soundproof cover is used for isolating external sounds; an inspection hole is formed in the soundproof cover; the noise detection device is arranged inside the soundproof cover; and the noise detection device penetrates through the inspection hole and is connected with the analysis instrument. According to the device, an awkward situation that abnormal sounds inside the audio can be heard only by manually rocking the audio can be effectively solved, a blank of the detection of the abnormal sounds inside the audio is filled, and support foundations can be provided for developing and designing a novel audio product, and detecting and analyzing noise and vibration data.

Description

technical field [0001] The invention relates to the field of car audio detection, in particular to a detection device for abnormal sound. Background technique [0002] With the rapid development of automobile design and manufacturing technology, automobile manufacturers have higher and higher requirements for the product quality of various auto parts suppliers. Such as car audio, often due to the abnormal sound produced by the sound during the road test of the car (mainly including the abnormal sound caused by the resonance of the hardware vibration during the operation of the car, the abnormal sound caused by the cable not being completely fixed and colliding with other parts, the movement or Abnormal noise caused by deformation of other parts, etc.) are returned for return processing. At present, the main test and inspection methods of car audio mainly include: audio and video test, vehicle GPS function test, internal component test of car audio, power module test and env...

AI Technical Summary

Problems solved by technology

At present, the main test and inspection methods of car audio mainly include: audio and video test, vehicle GPS function test, internal component test of car audio, power module test and environmental test, etc. At present, there is no abnormal sound test device directly for the whole car audio. Mainly rely on manually shaking the stereo, and then listen to it. This method is difficult to detect whether there is any abnormal sound. This is because firstly, artificial shaking cannot reach the vibration value of the car during the road test, and secondly, the human ear To listen to the interference of external environmental factors and the reason why the human ear is less sensitive to noise, so it is difficult to detect whether there is abnormal sound in the audio with this detection method

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