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Encryption and decryption method of WAV voice file

A voice file and file header technology, applied in voice analysis, electrical components, transmission systems, etc., to ensure the quality of voice signals and solve data security problems

Pending Publication Date: 2021-04-30
PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for encrypting and decrypting WAV voice files, which solves the data volume and data security problems of voice data in the process of storage and transmission

Method used

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  • Encryption and decryption method of WAV voice file

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Embodiment 1

[0018] figure 1 It is a flowchart of an encryption and decryption method of a WAV audio file in the present invention. An encryption and decryption method of a WAV audio file of the present invention includes encryption and compression processes S102-S105 and decryption and decompression processes S106-S108. Specific steps are as follows:

[0019] Step 101: Obtain the original WAV audio file.

[0020] The original WAV voice file may be a WAV voice file collected by devices such as a microphone or a prepared WAV voice file. The data encoding format of WAV audio files is 16bit PCM encoding.

[0021] Step 102: The encoder encodes the 16-bit PCM-coded voice data of each sampling point of the WAV voice file by the G.711 standard coding method to obtain compressed 8-bit voice data.

[0022] Each sample point in the original WAV audio file is stored by 16bit data volume, after encoding, the space occupied by each sample point becomes 8bit, that is, the data compression process is...

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PUM

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Abstract

The invention belongs to the technical field of computer and voice file storage, and particularly relates to a WAV voice file encryption and decryption method which comprises the following steps: acquiring an original WAV voice file; processing the original WAV voice file through an encoder; and processing the new WAV voice file through a decoder. According to the invention, the sampling data information of the WAV voice file is recoded based on the G.711 coding rule, new file header information is generated, the encrypted and compressed WAV voice file is obtained, the original WAV voice file can be recovered through the corresponding decoder, and the data security problem of the voice data in the storage and transmission process is solved.

Description

technical field [0001] The invention belongs to the technical field of computer and voice file storage, and in particular relates to an encryption and decryption method of a WAV voice file. Background technique [0002] With the rapid development of the field of artificial intelligence in recent years, various excellent algorithms have emerged in the fields of speech recognition and speech synthesis. In order to obtain better recognition results, a large amount of speech and annotation data must be required for training and testing. Therefore, having high-quality voice data is often of great value, and the storage and protection of these data is particularly critical. When performing voice tagging tasks, the data volume of these voice files will be extremely large, which will waste a lot of precious time in the process of data transmission and storage; and at the same time, it will also come into contact with a large number of tagging personnel, which will have a negative i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06G10L19/00
CPCH04L63/0428H04L69/04G10L19/00
Inventor 张文林冯立恒李喜坤陈琦何振华牛铜贺晓年
Owner PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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