Audio- playback test device and method

A technology of testing device and testing method, which is applied in speech analysis, detecting faulty computer hardware, instruments, etc., can solve the problems of lossy compression, complexity, and time-consuming testing, and achieve accurate and real test data and real-time The effect of simple analysis and testing process

Inactive Publication Date: 2008-06-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned method for audio playback test is extremely complicated, and the test takes a lot of time. Due to many digital audio conversions and too much lossy compression, real-time analysis cannot be realized, and the test data is not real

Method used

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  • Audio- playback test device and method
  • Audio- playback test device and method

Examples

Experimental program
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Embodiment Construction

[0013] Such as figure 1 Shown is a hardware architecture diagram of a preferred embodiment of the audio playback test device of the present invention. The device includes a control host 2, a monitor 1 connected to the control host 2, a precision audio analyzer 3, a standard sound card 4 and a tested client 5. Wherein the control host 2 is connected to the precision audio analyzer 3 through a 3.5mm connection terminal 8, the control host 2 is equipped with an audio test program, which controls the precision audio analyzer 3 to perform audio testing and analysis through the audio test program. The client 5 includes an electronic switch 6 and a built-in sound card 7 . The client 5 has a Universal Serial Bus Interface (USB) interface 210 and an audio output port 211 . The precision audio analyzer 3 has a digital signal output port 310 and an analog signal input port 311 . The audio output port 211 of the client 5 is connected to the analog signal input port 311 of the precision...

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Abstract

The invention provides an audio playback testing method, including the following steps: a control mainframe controls a precision audio analyzer to generate digital audio signal and outputs the signal to a standard sound card; the standard sound card converts the digital audio signal into a digital audio signal which can be received by a universal serial bus (USB) and then outputs the converted signal to a client computer; the client computer inputs the intact digital audio signal into the bus input end of the built-in sound card of the client computer; the built-in sound card converts the digital audio signal into an analog sound signal and outputs the analog sound signal to the precision audio analyzer; moreover, the control mainframe controls the precision audio analyzer to test and analyze the analog sound signal and obtains testing and analysis results. The invention also provides an audio playback testing device. The invention can complete intact digital audio playback testing and realizes real-time analysis of the testing results along with accurate testing data, simple testing procedure and faster testing speed.

Description

technical field [0001] The invention relates to an audio test analysis technology, in particular to an audio playback test device and method. Background technique [0002] With the arrival of the Vista operating device, audio products have been developed by leaps and bounds. Among them, audio codec suppliers have successively improved their product quality, and the sampling frequency and sampling bit width are getting higher and higher: from 44khz / 48khz in the AC97 era to 96khz, and the current 192khz. [0003] High-fidelity audio products are increasingly valued by customers. Stereo and full-frequency audio features are the requirements of the Vista operating device for personal computer (PC) audio. In order to ensure the audio playback effect of the computer, it is necessary to conduct an audio playback test on the computer. The traditional audio playback test method has a narrow coverage and does not realize the full frequency domain of all items. For example, when test...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/22
CPCG11B20/10527G11B20/1816G11B2020/10546G10L25/69
Inventor 陈爱民管小城甘小林何友光
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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