Loudspeaker self-checking method

Abstract

The invention discloses a loudspeaker self-checking method. The loudspeaker self-checking method comprises the following steps: arranging an acceleration sensor and a loudspeaker on a device; in a static state of equipment, enabling a loudspeaker to make a first sound, detecting a first vibration signal by an acceleration sensor during a playing period of the first sound, and recording and storing the first vibration signal; when the loudspeaker performs self-inspection, enabling the loudspeaker to generate a first sound, and enabling the acceleration sensor to detect a second vibration signal during the playing period of the first sound and record and store the second vibration signal; comparing the first vibration signal with the second vibration signal, if the similarity is greater than or equal to a first threshold value, determining that the loudspeaker is normal, and passing the self-inspection; if the similarity is smaller than a first threshold value, determining that the loudspeaker is abnormal and the self-inspection is not passed. The system is simple in structure, low in calculation mode complexity, smaller in calculation pressure, higher in self-checking accuracy and not prone to being interfered by external factors.

Description

technical field [0001] The invention relates to the field of loudspeakers, in particular to a method for self-inspection of loudspeakers. Background technique [0002] Loudspeaker, also known as "horn", is a very commonly used electroacoustic transducer device, which can be seen in electronic and electrical equipment that emits sound. The loudspeaker is a transducer device that converts electrical signals into acoustic signals, and the performance of the loudspeaker has a great influence on the sound quality. The loudspeaker is the weakest part in the audio equipment, but it is the most important part for the sound effect. Therefore, it is an important self-inspection item to detect whether the speaker can work normally. [0003] The conventional way to self-check the speaker is to monitor the sound from the speaker through a microphone, or to increase the hardware detection circuit for self-test, and the self-test through the microphone is easily disturbed by external noi...

AI Technical Summary

Problems solved by technology

[0003] The conventional way to self-check the speaker is to monitor the sound from the speaker through a microphone, or to increase the hardware detection circuit for self-test, and the self-test through the microphone is easily disturbed by external noise, and the self-test through the detection circuit will increase the circuit cost

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