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Angola Lightning headphone automatic test system
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Product Description
I. Function Overview
In order to solve the problem that Apple products cannot be directly controlled on the market, this solution uses the development of a WIFI-based APP (named: APPForIphone) on the Apple ipod touch to assist the test, so as to achieve the ability to play different test signals according to different test items. Parameters: Headphone Total Harmonic Distortion, Headphone Frequency Response, Microphone Frequency Response / Smartness, Microphone Total Harmonic Distortion.
System block diagram
Third, the test principle
3.1 Headphone audio test:
When the A2 audio analyzer starts the test, the artificial mouth plays the signal, and at the same time sends a command to the Apple ipod touch via WI-FI to start recording. The file formed by the recording is returned to A2 via WI-FI, and the analysis forms a frequency response curve.
3.2 Microphone audio test:
When the A2 audio analyzer starts testing, it sends instructions to the Apple ipod touch via WI-FI to start playing the signal. The signal received by the artificial ear returns to A2, forming a frequency response curve.
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