Device and method for testing audio sound-recording

A testing device and audio testing technology, applied in the direction of digital recording/reproduction, digital signal error detection/correction, electrical components, etc. The process is simple, the test speed is fast, the test data is accurate and the real effect

Inactive Publication Date: 2008-06-18
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 recording 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

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  • Device and method for testing audio sound-recording
  • Device and method for testing audio sound-recording
  • Device and method for testing audio sound-recording

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 recording test device of the present invention. The device includes a control host 2, a display 1 connected to the control host 2, a precision audio analyzer 3, a standard sound card 4 and a client 5 to be tested. The control host 2 is connected to the precision audio analyzer 3 through a 3.5 mm connecting terminal 8. The control host 2 is installed with an audio test program, and the audio test program controls the precision audio analyzer 3 to perform audio testing and analysis. The client 5 includes a built-in sound card 6 and an electronic switch 7. The client 5 has an analog audio signal input port 210 and a Universal Serial Bus Interface (USB interface) 211. The precision audio analyzer 3 has an analog signal output port 310 and a digital signal input port 311. The USB interface 211 of the client 5 is connected to the digital signal input port 311 of the precision audio a...

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Abstract

The invention provides an audio recording testing method, which comprises the following steps that: a control host computer controls a precision audio analysis meter to generate simulated audio signal with different frequencies and different signal amplitudes and input the signal into a customer computer; the simulated audio signal are recorded and switched into digital audio signal by a built-in sound card in the customer computer; the digital audio signal is output to a digital signal input port of the precision audio analysis meter in an integrity way by the control of the customer computer; the digital audio signal are tested and analyzed by the precision audio analysis meter that is controlled by audio frequency testing program arranged in the control host computer, and testing and analysis results are produced. The invention also provides an audio frequency recording and testing device. The invention can carry out complete simulated audio frequency recording and testing and realize real-time analysis of the testing results, which has accurate and authentic tested data, simple testing process and high testing speed.

Description

Technical field [0001] The invention relates to an audio test analysis technology, in particular to an audio recording test device and method. Background technique [0002] With the advent 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 have become higher and higher: from 44khz / 48khz in the AC97 era to 96khz, and the current 192khz. [0003] High-fidelity audio products are getting more and more attention from customers. Stereo and full-frequency audio characteristics are the requirements of Vista operating devices for personal computer (PC) sound effects. In order to ensure the audio recording effect of the computer, it is necessary to perform an audio recording test on the computer. The coverage of traditional audio recording test methods is relatively narrow, and the full frequency domain of all items has n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/18
CPCH04S7/00
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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