GB/T 28049-2011Code for sound reinforcement system design of auditorium, gymnasiums and stadium (English PDF)
厅堂、体育场馆扩声系统设计规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 31, 2011
Implementation date
February 1, 2012
Scope
GB/T 28049-2011 is the English-translated version of 厅堂、体育场馆扩声系统设计规范.
GB/T 28049-2011 is the Chinese standard "Code for sound reinforcement system design of auditorium, gymnasiums and stadium". Its scope clause reads: This standard specifies the method for designing various types of halls, sports venues PA system.
This standard applies to all types hall, stadium PA system in a relatively fixed installation design. Other PA system with fixed installation The place can be implemented by reference. Its clauses include terms and definitions.
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Document preview — GB/T 28049-2011
National Standard of the People's Republic of China
- ICS
- 33.160.99
- Classification
- M 72
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 design conditions and requirements
- 4.1 Design of Condition
- 4.2 design requirements
- 5 PA system consisting of
- 6 PA system design requirements
- 6.1 sound reinforcement system design requirements
- 6.2 stadium PA system design requirements
- 6.3 stadium PA system design requirements
- 7 sound system performance index
- 7.1 Electrical Characteristics Indicator
- 7.2 acoustic characteristics of indicators
- References
1 Scope
This standard specifies the method for designing various types of halls, sports venues PA system.
This standard applies to all types hall, stadium PA system in a relatively fixed installation design. Other PA system with fixed installation
The place can be implemented by reference.
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 4959 Hall Reinforcement Characteristic Measurement
GB/T 14197-1993 Preferred matching values of sound system equipment interconnection (eqv IEC 60268-15. 1982)
GB/T 14198-1993 General technical conditions for microphones
GB/T 15381-1994 and audio conferencing system electrical performance requirements (eqv IEC 60914. 1988)
GB/T 50356-2005 theaters, cinemas and architectural acoustics design specification multi-purpose hall
JGJ/T 131-2000 Gymnasium acoustic design and measurement procedures
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Hall auditorium
To view and play session for the main use of functional buildings, including theaters, concert halls, opera houses, multi-purpose hall, conference hall.
3.2 Stadiums
Indoor and outdoor venues for major sports events, and other uses.
3.3 PA system
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.
3.4 Maximum SPL
After the completion of the PA system debugging, the audience area each measurement point produces maximum sound pressure level of steady-state average. The maximum sound pressure level can be specified
RMS sound pressure level of the test signal crest factor, peak or quasi-peak SPL SPL representation.
3.5 Maximum available gain state
PA system in the critical state of self-excited acoustic feedback gain minus 6dB of gain time.
END: Draft Version (GB/T 28049-2011)
GB/T 25102.7-2017 | GB/T 14471-2013 | GB/T 25102.13-2010 | GB/T 28047-2026 | GB/T 28048-2011 | GB/T 28047-2011 |
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.
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