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Method for restoring audio files of mobile phone

A technology for audio files and mobile phones, applied in the field of information security, can solve problems such as inability to find, and achieve the effect of efficient finding and recovery

Active Publication Date: 2016-06-01
XLY SALVATIONDATA TECHNOLOGY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the mobile phone audio files, the AMR file format and SILKV3 file format are the main formats. These audio files may be electronic evidence of a certain case, but they cannot be found because they were deleted; therefore, a method to find and restore audio files is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0025] A method for recovering mobile phone audio files, comprising the following steps:

[0026] S1: Search the storage space of the mobile phone to find the audio file header features; in the underlying data, "0x02232153494C4B5F5633" is the header of the SILK file, and "0x2321414D520A" is the header of the AMR file.

[0027] S2: Determine the file type after finding the header feature of the audio file, whether it is a SILK file or an AMR file;

[0028] S3: Parse the structure of the audio file frame according to the file type format, and combine the underlying data of the audio file;

[0029] S4: extracts and creates combined audio files, saves the underlying data of the S3 combination as a file, which can be played.

[0030] The specific steps of S3 are:

[0031] S301: Find the fra...

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PUM

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Abstract

The invention discloses a method for restoring audio files of a mobile phone. The method includes the following steps that S1, storage space of the mobile phone is searched for, and the head characteristics of the audio files are searched for; S2, the types of the files are judged after the head characteristics of the audio files are found; S3, the structures of frames of the audio files are analyzed according to file type formats, and the audio files are combined; S4, the audio files are extracted and established again. The method has the advantages that the audio files in the mobile phone can be accurately found, the formats of the audio files are judged, the audio file structures are analyzed according to the formats, and the audio formats are combined into a playable mode, personnel handling a case are helped to find audio electronic evidence in the mobile phone, and work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a method for restoring mobile phone audio files. Background technique [0002] With the increasing number of mobile phones in social groups, there are all kinds of mobile phone application software, from food to accommodation, from travel to finance, from shopping to social networking, people are increasingly inseparable from mobile phones. [0003] The information in the mobile phone is mainly divided into two types of recording methods, one is text and text, and the other is audio and video. The early instant messaging information was transmitted in the form of text, but with the emergence of various social APPs, the way of transmitting information in the form of audio and video is increasing year by year. The audio and video input method is more convenient and fast, the reliability is higher, and the recognition ability is stronger. [0004] Among the mobile pho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F17/30
CPCG06F11/1435G06F16/13
Inventor 黄旭朱星海许超明董超
Owner XLY SALVATIONDATA TECHNOLOGY INC