Test device for multifunctional loudspeaker

Abstract

The invention relates to a test device for a multifunctional loudspeaker. The test device comprises a cavity of which one end is opened and a piston in sliding fit within the cavity. A positioning base for fixing and sealing single loudspeakers is set in the cavity at the side opposite to the piston. Sound holes fitting the single loudspeakers are set on the cavity at the positions corresponding to the positioning base. A damping structure for communicating the outside world with the interior of the cavity is set on the cavity body. The test device also comprises a signal generation device which is configured to generate at least one test signal; and a plurality of amplifiers which are connected with the signal generation device, wherein each amplifier comprises a terminal which is connected with one of the plurality of loudspeakers and is configured to amplify the at least one test signal, and the at least one test signal is used for driving the related loudspeaker.

Description

technical field [0001] The present invention relates to a test tool, more specifically the present invention relates to a test device for a multifunctional loudspeaker. Background technique [0002] In the field of electronic technology, speaker acoustic performance testing is an important process. The usual practice is to place the loudspeaker unit in a closed cavity for a series of sound tests. With the development of science and technology, people have higher and higher requirements for the acoustic performance of speakers. Therefore, in order to meet the brand-new needs of consumers for speakers, it is necessary to test the corresponding acoustic performance of the speakers in closed environments with different volumes. At present, the volume of the cabinet used in the test is fixed, and different volume tests need to be replaced with different cabinets, which makes the test efficiency low and the cost high; and the difference between speaker batches cannot be avoided,...

AI Technical Summary

Problems solved by technology

At present, the volume of the cabinet used in the test is fixed, and the test of different volumes needs to be replaced with different cabinets, which makes the test efficiency low and the cost high; and the difference between speaker batches cannot be avoided, which affects the test accuracy.

[0003] In modern electronic products, the speaker is usually installed in the external terminal shell in the form of a speaker module, but the traditional speaker test is to place the speaker unit in a closed test environment, because the environment of the speaker unit and the speaker module itself is different , therefore, the results obtained by this test method cannot accurately express the acoustic parameters of the speaker module

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