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Basic dataStandard ID: GA/T 2011-2023 (GA/T2011-2023)Description (Translated English): Technical specification for extraction of audio files from mobile phone Sector / Industry: Public Security (Police) Industry Standard (Recommended) Classification of Chinese Standard: A92 Classification of International Standard: 13.310 Word Count Estimation: 6,654 Date of Issue: 2023-02-20 Date of Implementation: 2023-03-01 Issuing agency(ies): Ministry of Public Security GA/T 2011-2023: Technical specification for extraction of audio files from mobile phone---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.ICS 13.310 CCSA92 Public Security Industry Standard of the People's Republic of China Technical Specifications for Extracting Audio Files from Mobile Phones Released on 2023-02-20 2023-03-01 Implementation The Ministry of Public Security of the People's Republic of China issued ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The institution does not bear responsibility for identifying patents. This document was submitted by the Criminal Investigation Bureau of the Ministry of Public Security. This document is under the jurisdiction of the National Technical Committee on Criminal Technology Standardization (SAC/TC179). This document was drafted by. Criminal Investigation Corps of Beijing Municipal Public Security Bureau, Criminal Investigation Bureau of Shaanxi Provincial Public Security Department, Physical Evidence Identification Center of Shandong Provincial Public Security Department, Heilongjiang Provincial Public Security Bureau, Criminal Investigation Bureau of Shaanxi Provincial Public Security Department... Criminal Technology Corps of Public Security Department of Jiangxi Province, Criminal Technology Corps of Public Security Department of Liaoning Province, Criminal Technology Corps of Public Security Department of Fujian Province, Criminal Technology Corps of Public Security Department of Guizhou Province Center, Binhai Public Security Bureau, Guangzhou Public Security Bureau, Zhejiang Provincial Public Security Department Criminal Investigation Corps, Guangdong Provincial Public Security Department Criminal Technology Center, Nanjing Public Security Bureau Bureau, Tangshan Municipal Public Security Bureau. The main drafters of this document are. Jia Yongsheng, Wei Tongsheng, Liu Yingjie, Li Rongrong, Zhang Dong, Liu Li, Fan An, Guo Chengcheng, Chen Jian, Huang Juncan, Xu Dezhi, Gong Fangzhi, Jia Dongjian, Yuan Qingan, Jin Meishun, Xu Kexin, Liu Ning, Zhang Zhicheng, Ge Dayong, and Zhao Wei. Technical Specifications for Extracting Audio Files from Mobile Phones1 ScopeThis document specifies the technical methods for extracting audio files from iOS and Android phones. This document is applicable to voice identity identification, recording authenticity verification, noise reduction and voice enhancement processing, and voice personal analysis in forensic science. Extraction of recording files from iOS and Android mobile phones during inspection and identification work.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 29362-2012 Electronic evidence data search and inspection procedures GB/T 35048-2018 Forensic science voice and audio examination terminology GA/T 1069-2021 Technical Specification for Mobile Phone Inspection of Forensic Electronic Evidence3 Terms and definitionsThe following terms and definitions as defined in GA/T 1069-2021, GB/T 29362-2012, GB/T 35048-2018 and the following terms and definitions apply to this document. 3.1 audiofile An audio file generated by recording sound using a device with recording function. 3.2 voice memo file voicememofile Use the voice memo software in the iOS phone to record the generated recording file. 3.3 Audio files generated by using instant messaging software such as WeChat, QQ, Facebook, etc. in mobile phones. 3.4 Voice memo files (iOS phones only) and recording files other than instant messaging recording files stored in the phone, including but It is not limited to recording files generated by other recording software in the mobile phone or externally imported recording files.4 EquipmentVoice workstation or electronic evidence mobile phone evidence collection equipment, mobile communication signal shielding equipment, electronic evidence mobile phone evidence collection software, Apple mobile Device management software, Android phone assistant software, audio playback software, hash value calculation software. ...... |
