A method and system for realizing automatic detection of vehicle multimedia audio compatibility

A vehicle-mounted multimedia and automatic detection technology, applied in the field of vehicles, can solve problems such as differences in the evaluation of audio file playback effects, and achieve the effect of improving work efficiency

Active Publication Date: 2020-02-11
HUIZHOU DESAY SV AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it often takes an engineer to listen to these audio files continuously for more than a week before testing these audio files, and different engineers have different hearing, resulting in differences in the evaluation of the playback effect of audio files

Method used

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  • A method and system for realizing automatic detection of vehicle multimedia audio compatibility
  • A method and system for realizing automatic detection of vehicle multimedia audio compatibility

Examples

Experimental program
Comparison scheme
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Embodiment

[0034] This embodiment provides a method for realizing the automatic detection of vehicle-mounted multimedia audio compatibility, such as figure 1 shown, including:

[0035] Step 1: Copy the audio format files that need to be detected in the audio file test library to the USB / SD medium and the computer processing system,

[0036] Step 2: Insert the USB / SD medium into the vehicle-mounted multimedia to play, and the vehicle-mounted multimedia outputs an analog signal,

[0037] Step 3: The ID3 acquisition and identification module is connected to the vehicle multimedia through the Trace line and the TTL board, monitors and collects the decoding information of the audio and video decoding chip in the vehicle multimedia in real time, and judges whether the collected information is new ID3 information, if it is new ID3 information Then send it to the computer processing system, otherwise continue to collect the decoding information of the vehicle multimedia,

[0038] Step 4: The c...

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PUM

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Abstract

The invention, which relates to the vehicle-mounted field, discloses a method for realizing automatic detection of vehicle-mounted multimedia audio compatibility. The method comprises: a USB / SD mediumis plugged into a vehicle-mounted multimedia for playing; the vehicle-mounted multimedia outputs an analog signal; an ID3 acquisition and identification module connected with the vehicle-mounted multimedia monitors and collects decoding information of an audio-video decoding chip in the vehicle-mounted multimedia in real time; a computer processing system matches the received ID3 information withaudio-format files needing testing in the computer processing system to screen out the audio-format file in conformance with the ID3 information; a LabVIEW compares a sampled microphone sound with asound file of a file path, carries out spectrum measurement analysis, combination, and matching and comparison, and outputs a comparison result; and on the basis of the compassion result, a test report is updated and the updated report is outputted. Therefore, the work efficiency and test accuracy are improved.

Description

technical field [0001] The invention relates to the vehicle field, in particular to a method and system for realizing automatic detection of vehicle multimedia audio compatibility. Background technique [0002] The rapid development of in-vehicle multimedia technology has been fully integrated into people's work, study and life, making people's life more colorful and playing an important role in the development of society. However, in the field of application of in-vehicle multimedia audio and video technology, due to the incompatibility of formats, users have many unnecessary troubles when using and watching. Therefore, in the development process of vehicle-mounted multimedia products, how to quickly and accurately test and confirm the audio and video compatibility of the product has become an urgent problem to be solved. [0003] There are dozens of audio formats that are popular and used by people in the market today (such as MP3 audio, MP3pro audio, WMA audio, AAC audio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/18
Inventor 曾士杰
Owner HUIZHOU DESAY SV AUTOMOTIVE
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