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Technical requirements and detecting method of audio and video for digital publication
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Technical requirements and detecting method of audio and video program for digital publication
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Basic data
| Standard 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 | 14,138 |
| 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| Older Standard (superseded by this standard) | GB/T 33665-2017 |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 contents
PrefaceⅠ
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 10
Foreword
This 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 methods
1 Scope
This 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 documents
The 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 definitions
The 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:
...
