Correction method of earphone audio test tool as well as earphone audio test method and system
A technology for testing tooling and audio testing, applied in electrical components and other directions, can solve problems such as the influence of the unbalanced left and right clamping force of the headphone headlines, and achieve good consistency.
Active Publication Date: 2016-12-07
QINGDAO GOERTEK
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Problems solved by technology
[0004] In view of the non-complete symmetry of the left and right earpieces of the test tool in the prior art and the influence of the unbalanced clamping force on the left and right headphone headbars on the test results, a correction method for the earphone audio test tool and the earphone are proposed in the present invention. Audio testing method and system in order to solve or at least partly solve the above problems
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[0040]The core idea of the present invention is: theoretically, if the consistency of the left and right test fixtures is good, and the clamping force of the left and right ears is balanced, the frequency response curves measured by the single speaker of the earphone on the left and right fixtures should be consistent, that is, the left and right speakers The test results on the left and right earpieces are consistent with the test results on the left and right speakers on the same earpiece. However, in the actual test, the difference between the left and right earpieces of the same test tool is unavoidable, and at the same time, there is inevitably a certain difference in the clamping force of the left and right ears of the earphone. The method of testing the correction value of the tooling is used to correct and compensate the test results of the earphones to be tested.
[0041] In order to make the object, technical solution and advantages of the present invention clearer...
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The invention discloses a correction method of an earphone audio test tool as well as an earphone audio test method and system. The correction method mainly comprises the following steps of: obtaining frequency response curves, measured at the left and right ear pieces of the test tool, of left and right loudspeakers of a standard earphone; obtaining difference values, on the left and right ear pieces, of the left and right loudspeakers according to the frequency response curves; and taking an average value of the difference values as an average difference of the test tool and storing the average value as a correction value of the test tool, wherein the correction value is used for carrying out correction compensation on the frequency response curves measured by the earphone audio test tool. According to the correction method, correction compensation is carried out on the frequency response curves of the to-be-measured earphone by adopting the correction value, so that the influences, caused by the difference, between the left and right ear pieces, of the test tool and the difference between left and right clamping forces of a headline of the earphone, on the test result are eliminated, favorable consistency between the frequency responses of the left and right loudspeakers is obtained, and the audio performance of the to-be-measured earphone is embodied more really.
Description
technical field [0001] The invention relates to the technical field of earphone audio testing, in particular to a correction method of an earphone audio testing tool and a method and system for earphone audio testing. Background technique [0002] With the advancement of technology and the popularization of electronic products, consumers have higher and higher requirements for products. In particular, people's requirements for the quality of headphone products are getting higher and higher, requiring them to have clear high, medium and low levels and theater-like sound quality performance around the surroundings, as well as the consistency of the frequency response of the left and right speakers. [0003] In the current headphone audio test tool, when evaluating the frequency response consistency of the left and right speakers of the headset, the calculation method is to directly subtract the frequency response curves measured by the left and right speakers. It is feasible ...
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IPC IPC(8): H04R29/00
CPCH04R29/001
Inventor 段秀华张文来
Owner QINGDAO GOERTEK