The function detection of a loudspeaker module not only involves perfection detection of a single interface, but more importantly, whether the function of an audio module in loudspeaker front-end device is normal is judged by detecting the signal of a loudspeaker interface, wherein the audio module includes an audio generating source module, an audio transmission channel and an audio control module. Thus, the function detection of the loudspeaker interface is substantially to judge whether the function of the audio module of the loudspeaker module is normal. Before overall assembly, the function of the loudspeaker module of a product in which the loudspeaker is arranged is detected, so that defective audio module products may be effectively prevented from entering the subsequent assembly stage, then the reject ratio of the overall product is controlled, and the production cost is reduced.
At present, the most common method for detecting the function of the loudspeaker module includes the steps of directly connecting the loudspeaker to a detection interface and then judging whether the loudspeaker produces sound by human ears to determine whether the function of the audio module is normal. This method is most direct and convenient. However, generally, a plurality of loudspeaker modules need to be simultaneously detected in the detection process. Accordingly, the sound simultaneously produced by the plurality of loudspeaker modules is liable to generate acoustic interference to human ears, so that the detection result is inaccurate and the detection process needs a large amount of manpower.