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Information technology -- Advanced coding of audio and video -- Part 10: Mobile speech and audio
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GB/T 20090.10-2013
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Basic data | Standard ID | GB/T 20090.10-2013 (GB/T20090.10-2013) | | Description (Translated English) | Information technology -- Advanced coding of audio and video -- Part 10: Mobile speech and audio | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L71 | | Classification of International Standard | 35.040 | | Word Count Estimation | 128,19 | | Quoted Standard | GB/T 5271.1-2000; GB/T 5271.4-2000; GB/T 5271.9-2001; GB/T 15526-1995 | | Regulation (derived from) | National Standards Bulletin 2013 No. 27 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the encoding method of mobile voice and audio signals, encoding and decoding method, said. This standard applies to the following areas: mobile communications; wireless broadband multimedia communications; Internet broadband stream | GB/T 20090.10-2013: Information technology -- Advanced coding of audio and video -- Part 10: Mobile speech and audio
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Information technology Advanced coding of audio and video Part 10. Mobile speech and audio
ICS 35.040
L71
National Standards of People's Republic of China
They advanced audio and video coding
Part 10. mobile voice and audio
Part 10. Mobilespeechandaudio
Issued on. 2013-12-31
2014-07-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
Introduction Ⅱ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Symbols and abbreviations 3
5 Overview 5
6 Encoder Functional Description 12
7 Decoder Functional Description 82
8 allocation descriptor 101
9 storage, transmission interface format 107
Appendix A (normative appendix) VAD detector 111
Appendix B (normative) Digital stereo reference table 115
Annex C (normative) comfort noise model 120
Foreword
GB/T 20090 "Information technology advanced audio and video coding" is divided into 13 sections.
--- Part 1. System;
--- Part 2. Video;
--- Part 3. Audio;
--- Part 4. Conformance testing;
--- Part 5. Reference software;
--- Part 6. Digital Rights Management for trusted decoder and access protocols;
--- Part 7. Application for interactive video codec;
--- Part 8. transmission AVS on the IP network;
Part --- Article 9. AVS file format;
--- Part 10. mobile voice and audio;
--- Part 11. Synchronized Text;
--- Part 12. Integrated scene;
--- Part 13. reconfigurable video encoding tools.
This section GB/T Part of 1,020,090.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part of the National Information Technology Standardization Technical Committee (SAC/TC28) and focal points.
This section is drafted. Wuhan University, Huawei Technologies Co., Ltd., Tianjin University, Shanghai Jiaotong University, Beijing Samsung Communication Technology
Co., Ltd., the core Sheng (Beijing) Technology Co., Ltd., Chinese Academy of Sciences Institute of Acoustics, Spreadtrum Communications (Shanghai) Co., Ltd., China Electronics Technology
Standardization Institute.
The main drafters of this section. Gao, Huang Tiejun, HU Rui-min, Ma Fu Wei, Zhang Tao, Gao Ge, Zhang Yong, Liu Peilin, Xiaochen Wang, Li Xun, Jantje,
Denghao Jiang, Lin Fuhui.
Introduction
This section GB/T 20090 is the next generation mobile communication system for low-bit-rate speech audio codec technology standards, in order to adapt
Mobile communications, broadband wireless multimedia communications, Internet broadband streaming media business applications for speech and audio compression technology and the need to develop.
Audio codec technology supports sampling frequencies described in this section is 8kHz, 16kHz, 24kHz, 32kHz, 48kHz,
11.025kHz, 22.05kHz, 44.1kHz, 16-bit sampling mono, stereo pulse code modulation signal, the decoded output is the same format
Type mono or stereo signal, mono mode output bit stream 10.4kbit/s ~ 24kbit/s, the output bit stream to stereo mode
12.4kbit/s ~ 32kbit/s.
The issuing authority of the document drew attention to declare compliance with this document may involve 11 digital audio codec technology and related patents to make
use. The 11 patents are. ZL200610139703.8, an implementation method and apparatus for open-loop pitch search; ZL200610145785.7, election
Method and apparatus for selective adaptive codebook excitation signal; ZL200610128778.6, voice or audio signal bandwidth extension methods and systems;
ZL200710001186.2, speech decoding method and apparatus (pitch) speech decoder implemented; ZL200610162678.5, A Solution
Code method and apparatus; ZL200710038078.2, use cache to speed up the quantized data obtained by encoding and decoding methods;
ZL200810038192.X, based on vector quantization table becomes long division of the higher-order code extension encoding and decoding system; ZL200710064350.4, a
Species lattice vector quantization codec implementation method and apparatus; ZL200710099046.3, a highly configurable frequency-domain and multi-parametric stereo
ZL200710006619.3, intercepting method and apparatus for an input signal;; channel encoding and decoding method and system ZL200810006804.7, a
Species gain quantization method and apparatus.
The issuing authority for the above patent document authenticity, validity and scope without any position.
The patent holder has to ensure that this part of the issuing authority, willing to work with any applicant under reasonable and non-discriminatory terms and conditions, it makes
Negotiations with the License. In this regard, the patent holder has filed a statement in this section of the release mechanism.
This section relates to the patent license to follow this part of the drafting of the organizers of Audio Video Coding Standard Working Group to develop and signed by the members
Department agreed to "intellectual property policy" by "AVS patent pool" to license specific license terms determined by the Patent Pool Administration Board. Mark
Prospective implementers may obtain patent pool license all patents through patent pools Commission or its authorized agencies.
Patent Pool Administration Committee is composed of digital audio and video codec technology standards working group to promote the launch. Related matters may contact the digital audio and video encoding
Decoding technology standards working group secretariat, contact the following.
Contact. Huang Tiejun
Mailing Address. Box 2704 Beijing 31 Binning
Postal Code. 100080
Email. [email protected]
Phone. 861 058 858 303, 861058858300-303
Fax. 861 058 858 301
They advanced audio and video coding
Part 10. mobile voice and audio
1 Scope
This section GB/T 20090 specifies the mobile voice coding method and an audio signal encoding and decoding method of representation.
This section applies to the following areas.
---Mobile communications;
--- Wireless broadband multimedia communications;
--- Internet broadband streaming media business.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 5271.1-2000 Information technology - Vocabulary - Part 1. Basic terminology (eqv ISO /IEC 2382-1.1993)
GB/T 5271.4-2000 Information technology - Vocabulary - Part 4. Organization of data (eqv ISO /IEC 2382-4. 1987)
GB/T 5271.9-2001 Information technology - Vocabulary - Part 9. Data communication (eqv ISO /IEC 2382-9.1995)
GB/T 15526-1995 audio recording PCM codec system
3 Terms and Definitions
GB/T 5271.1-2000, GB/T 5271.4-2000, GB/T 5271.9-2001 and GB/T 15526-1995 defined in
And the following terms and definitions apply to this document.
3.1
Bitrate bitrate
The compressed bit stream to the decoder input rate.
3.2
Bitstream bitstream
Encoding data represented as a sequence of a certain group of bits.
3.3
Coding coding
Reads audio samples and produces a coded bit stream of the process.
3.4
Encoder encoder
Specific encoding process implementers.
3.5
Scale factor scalefactor
Before quantization scale value of a group of factors.
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