Automatic testing method and system for multi-unit wireless audio product

Abstract

The invention discloses an automatic testing method and system for a multi-unit wireless audio product. The method comprises the steps of: by a multi-frequency-point sine signal generator, generatinga plurality of single-frequency-point audio signals, and after the single-frequency-point audio signals are mixed, modulating a mixed signal onto a high-frequency wireless carrier by a wireless transmission host; after a multi-unit jointed board is powered on, receiving wireless signals by a plurality of wireless audio products, after the wireless signals are respectively demodulated, outputting wireless signals onto a multi-channel computer sound card, and after the wireless signals are converted into digital signals, carrying out the FFT operation on the digital signals, and calculating frequency points and amplitudes of receiving the wireless signals; and simultaneously, carrying out comparison with a testing standard value, and judging whether the wireless audio products are qualified.According to the invention, both ears of a tester are liberated; accuracy of a testing audio index and reliability of testing are improved, and subjectivity of artificial sound hearing is effectivelyovercome; a computer is used, parallel testing of the multi-unit jointed board is implemented, and testing efficiency is greatly improved; and an old method of artificial subjective sound hearing ischanged into computer analysis so as to get one step towards artificial intelligence.

Description

technical field [0001] The invention relates to the field of wireless audio product testing, more specifically, it relates to an automatic testing method and system for multi-unit wireless audio products. Background technique [0002] At present, the production test of wireless (2.4G, Bluetooth, WiFi, etc.) audio terminal modules or products in the market is almost all performed by manual listening test. Such as figure 1 As shown, the quality inspection content of the tested wireless audio products is mainly to test the reliability of the wireless connection, the integrity of the transmitted signal, and the compliance of the audio indicators. It will be very cumbersome to test all these three aspects, the required equipment is expensive, and the test takes a long time, resulting in very high test costs and affecting the development of mass production. [0003] At present, in order to save costs and simplify test procedures, most manufacturers have adopted the method of art...

AI Technical Summary

Problems solved by technology

This actually uses the method of subjective feeling to replace the quantitative test. The quantitative and reliability of the test cannot be guaranteed, and the shortcomings are very obvious.

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