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GB/T 28047-2011 English PDF

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GB/T 28047-2011: Method of listening evaluation of sound reinforcement of auditorium gymnasium and stadium
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Basic data

Standard ID GB/T 28047-2011 (GB/T28047-2011)
Description (Translated English) Method of listening evaluation of sound reinforcement of auditorium gymnasium and stadium
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M72
Classification of International Standard 33.160.99
Word Count Estimation 18,180
Date of Issue 2011-10-31
Date of Implementation 2012-02-01
Quoted Standard GB/T 3785.1; GB/T 6278; GB/T 3785.2
Regulation (derived from) Announcement of Newly Approved National Standards No. 15 of 2011
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 requirements for sound reinforcement system for listening evaluation approach. This standard applies to all types of halls, stadiums relatively fixed installed sound system listening evaluation.

GB/T 28047-2011: Method of listening evaluation of sound reinforcement of auditorium gymnasium and stadium


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Method of listening evaluation of sound reinforcement of auditorium gymnasium and stadium ICS 33.160.99 M72 National Standards of People's Republic of China Hall, stadium PA system listening evaluation method Issued on. 2011-10-31 2012-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Specification 2 Select 5 listening point 2 6 program source 3 6.1 program source content 3 Editing and production 6.2 program sources claim 3 7 listening assessor 3 7.1 listening assessor Condition 3 7.2 Listening Panel consisting of 4 7.3 The number of listening group 4 7.4 listening evaluators working hours 4 8 Evaluation Item 4 8.1 Overview 4 8.2 Evaluation burst 4 5 8.3 Evaluation PA 9 8 Rating Scale and Rating 9.1 8 rating scale 9.2 8 ratings 10 evaluation procedures 8 Preparatory work 10.1 System 8 10.2 Notice and listening reviewers preliminary training 9 10.3 evaluation order 9 10.4 Evaluation of repetitions 9 11 evaluation results indicate 9 11.1 listening evaluation results are summarized in Table 9 11.2 listening evaluation report on the results 10 Recommendation Annex A (informative) Distribution and listening point team members listening gender and age distribution of the 11 Appendix B (normative) Evaluation PA analog sound source method 12 Annex C (normative) sound system listening evaluation statistics 13

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This standard by the national audio, video and multimedia systems and equipment Standardization Technical Committee (TC/SAC242) centralized. This standard is mainly drafted by. Chinese Institute of Electronics Technology Group Corporation, China Entertainment Technology Association, Nanjing University. Participated in the drafting of this standard. Tongji University, China Audio Industry Association, China National Radio, China Radio, Film and Television broadcasting Design and Research Institute, Chinese Academy of Sciences Institute of Acoustics, Electronics Standardization Institute, Communication University of China Institute of Acoustics spread, China Construction Institute of Physics, School of Information, Beijing Union University, Beijing Institute of Architectural Design, China National Symphony Orchestra, the State Sports General Administration of Sports Facilities and standard office building, Beijing Broadcasting radio and television installation company, Beijing days a Openwave Technology Co., Ltd., Beijing Zhongda Yokado Electronic Technology Co., Ltd., Beijing Hua Technology Co., Ltd. joint body. The main drafters of this standard. Xu literature, Liu Fang, Cui Guang, the Sui Chunli Shen Yong, Wang Jiqing, Zhang Bi, Ma, them this, Li Xiaodong, Chen Jing, Challenger, Mencius thick, Luhong Yao, Li Guoqi, Chen Huaimin, Luoxue Cong, Wang whole, Qi Qi, Zhu Feng, Zheng Code Yong Lei Ningqiu, Ren Hong Lei, Wang Liansheng, Shen Kai Qing, Zou Yuhuan, Liu Haipeng, Chen Xi, Zhang Yan. Hall, stadium PA system listening evaluation method

1 Scope

This standard specifies the sound quality of the PA system listening evaluation methods. This standard applies to all types of halls, stadiums relatively fixed installation listening evaluation PA system.

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 3785 (all parts), electric acoustic sound level meter GB/T 6278 analog program signal (GB/T 6278-1986, eqv IEC 60268-1C. 1982)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 PA system soundreinforcementsystem PA system including system devices sound field environment. Main process. the sound source signals into electrical signals, amplified, processed, transmitted Lose, and then restore the sound field environment and services; main components. a microphone, a sound source equipment, mixers, signal processors, audio power Amplifiers and speaker systems. 3.2 Hall auditorium To view and play session for the main use of functional buildings, including theaters, opera houses, concert halls, multi-purpose hall, conference hall. 3.3 Stadiums stadiumandgymnasiums Indoor and outdoor venues for major sports events, and other uses. 3.4 Listening evaluation listeningevaluation Listening tests listeningtest Hearing the sound quality is determined by the status of the PA system. 3.5 Comments by the system systemunder Acceptance listening evaluation of PA system. 3.6 Empty field unoccupied When the same scene is set with normal use, but no audience and actors.

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