GB/T 33665-2023 English PDFUS$289.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 33665-2023: Technical requirements and detecting method of audio and video for digital publication Status: Valid GB/T 33665: Historical versions
Basic dataStandard ID: GB/T 33665-2023 (GB/T33665-2023)Description (Translated English): Technical requirements and detecting method of audio and video for digital publication Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A19 Classification of International Standard: 01.140.40 Word Count Estimation: 14,196 Date of Issue: 2023-12-28 Date of Implementation: 2023-12-28 Older Standard (superseded by this standard): GB/T 33665-2017 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 33665-2023: Technical requirements and detecting method of audio and video for digital publication---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 01:140:40 CCSA19 National Standards of People's Republic of China Replace GB/T 33665-2017 Audio and video technical requirements for digital publications and detection methods Published on 2023-12-28 Implemented on 2023-12-28 State Administration for Market Regulation Released by the National Standardization Administration Committee Table of contentsPrefaceⅠ 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Basic technical requirements 2 4:1 Audio 2 4:2 Video 2 5 Audio and video media requirements 4 6 Audio and video technology detection 4 6:1 Testing environment 4 6:2 Testing equipment 4 6:3 Testing method 5 Appendix A (Normative) Audio and video media requirements for digital publications 6 Appendix B (informative) Audio and video detection standard signal sample 7 Reference 10ForewordThis document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document replaces GB/T 33665-2017 "Technical Requirements and Testing Methods for Digital Publications of Audiovisual Programs": With GB/T 33665- Compared with:2017, in addition to structural adjustments and editorial changes, the main technical changes are as follows: ---Deleted the two definitions of "interlaced scanning" and "progressive scanning" (see 3:4 and 3:5 of the:2017 version); ---Changed the definition of "channel" (see 3:5, 3:7 of the:2017 version); ---Changed the definition of "surround sound" (see 3:6,:2017 version 3:8); ---Added "Audio Coding Format Requirements" (see Table 1 and Table 2); ---Added "Basic technical requirements for three-dimensional sound" (see Table 1); ---Added "video encoding format requirements" (see Table 3, Table 4, Table 5); ---Added the "Basic Technical Requirements for Ultra-High Definition Video" and proposed relevant parameter values for ultra-high-definition quality 4K and 8K images: (see 4:2:1); ---Changed the name of the detection equipment "Image Analyzer" (see 6:2, Figure 2,:2017 version of 6:2, Figure 1); ---Changed the name of the testing equipment "digital recorder" (see 6:2, Figure 1, Figure 2,:2017 version of 6:2, Figure 1, Figure 2); ---Changed the name of the testing equipment "audio analyzer" (see 6:2, Figure 1,:2017 version of 6:2, Figure 2); ---Added "memory card, mobile hard disk" as storage media (see Figure 1 and Figure 2): Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is submitted by the National Press and Publication Administration: This document is under the jurisdiction of the National Press and Publication Standardization Technical Committee (SAC/TC527): This document was drafted by: Beijing Huahun Cultural and Creative Co:, Ltd:, China Press and Publication Research Institute, Central Propaganda Department Publication Product Quality Quality Supervision and Inspection Center, Zhongguancun Audiovisual Industry Technology Innovation Alliance, Atmos Technology Nanjing Co:, Ltd:, Beijing Century Dehong Culture and Art Co:, Ltd: Ltd: The main drafters of this document: Gu Xuelin, Yan Xinsheng, Hu Fengying, Xia Weinan, Chen Lei, Yang Xiao, Zhang Weimin, Pan Xingde, Lu Jianhao, Wu Xiaoguang, Wang Yujuan: The previous versions of this document and the documents it replaces are as follows: ---First published as GB/T 33665-2017 in:2017; ---This is the first revision: Audio and video technical requirements for digital publications and detection methods1 ScopeThis document specifies the basic technical requirements and media requirements for digital publication audio and video, and describes detection methods: This document is suitable for the production and detection of audio and video of digital publications:2 Normative reference documentsThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 31493-2015 Technical requirements for digital audio and video analyzers GB/T 33663-2017 Read-only publications CD and DVD routine testing parameters SJ/T 11528-2015 General Specification for Information Technology Mobile Storage Cards SJ/T 11655-2016 Information Technology Mobile Storage Mobile Hard Disk General Specification ISO /IEC 30192:2021 Information technology Information exchange and storage Digital recording media 120mm single layer (25GB per disk)3 Terms and definitionsThe following terms and definitions apply to this document: 3:1 sampling frequency sampling frequency The frequency or period at which the analog source signal is sampled: [Source: GB/T 17191:3-1997,6:4] 3:2 pixel pixel; pictureelement; pel In a display image, the smallest two-dimensional element that can be independently assigned attributes (such as color and intensity): [Source: GB/T 5271:13-2008,13:08:03] 3:3 quantification Grade the sample values: [Source: GB/T 3947-1996,14:31] 3:4 sampling The discrete values of a continuous variable obtained at equal or arbitrary time intervals: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 33665-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 33665-2023_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 33665-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 33665-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
