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GA/T 1430-2017: Specifications for audio authentication analysis in forensics
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GA/T 1430-2017 | English | 139 |
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Specifications for audio authentication analysis in forensics
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GA/T 1430-2017
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Basic data | Standard ID | GA/T 1430-2017 (GA/T1430-2017) | | Description (Translated English) | Specifications for audio authentication analysis in forensics | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.210 | | Word Count Estimation | 6,686 | | Date of Issue | 2017-09-07 | | Date of Implementation | 2017-09-07 | | Issuing agency(ies) | Ministry of Public Security | GA/T 1430-2017: Specifications for audio authentication analysis in forensics---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specifications for audio authentication analysis in forensics
ICS 13.210
A92
People's Republic of China Public Safety Industry Standard
Technical specification for authenticity test of forensic science recording
Published on.2017-09-07
2017-09-07 implementation
Ministry of Public Security
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Physical Identification Center of the Ministry of Public Security.
This standard is under the jurisdiction of the Technical Committee for Photographic Inspection of National Criminal Technology Standardization Technical Committee (SAC/TC179/SC5).
This standard was drafted. Ministry of Public Security Material Certification Center, Supreme People's Procuratorate Inspection Technology Information Research Center, Guangdong Provincial Public Security Department, public
The Third Institute of the Ministry of Justice, the Institute of Evidence Science of China University of Political Science and Law, and the Shanxi Provincial Public Security Department.
The main drafters of this standard. Li Jingyang, Wang Li, Wang Xiaodi, Wang Ningmin, Wang Yingli, Jin Bo, Cao Honglin, Kang Jintao, Li Hongming.
Technical specification for authenticity test of forensic science recording
1 Scope
This standard specifies the inspection content, inspection requirements, inspection methods, judgment basis and authenticity of the authenticity (integrity) of forensic digital audio.
The expression of the test opinion.
This standard applies to the authenticity (integrity) test of digital audio data in the identification of audiovisual data in the forensic science field.
2 Instruments and equipment
2.1 Hardware
Voice workstations, audio interfaces, data read-only interfaces, digital audio playback devices, monitor speakers and monitor headphones.
2.2 Software
Audio and video playback software, audio extraction software, format conversion software, data write protection software, comprehensive electronic data analysis software.
3 steps
3.1 Record of the materials
3.1.1 Take a picture of the storage device and/or storage medium of the sample, and save the screenshot of the path of the digital file in the storage medium.
3.1.2 General requirements for original recording equipment, storage media and audio files.
3.1.3 If the following conditions exist, it can be treated as a special case.
a) the recording device is a special device;
b) The original audio file has been deleted, overwritten, or the recording device has been corrupted and cannot be recovered.
3.2 Identification of the material
Unique identification of the sample (carrier). If the identification is not possible, the hash value of its file is used as the unique identifier.
3.3 Loading of samples
3.3.1 Recording and recording equipment
Connect the recording and recording equipment to the voice workstation through the data cable and data read-only interface, directly copy or use special software to upload
load.
Note 1. When the recording and recording device cannot use the data read-only interface, it can be directly connected to the voice workstation through the data cable.
Note 2. When the recording and recording equipment cannot be connected to the voice workstation through the data cable, it can be output to the voice workstation through the audio cable, or wirelessly transmitted.
Way to load.
3.3.2 Mobile Storage Devices
The mobile storage device is connected to the voice workstation through the data read-only interface, and the direct copy is implemented for loading.
3.3.3 Other media such as CDs
Read digital audio through other devices such as optical drives, copy directly or use audio extraction software to load.
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