GB/T 36075.2-2018Acoustics -- Measurement of room acoustic parameters -- Part 2: Reverberation time in ordinary rooms (English PDF)
声学 室内声学参量测量 第2部分：普通房间混响时间
This is a limited preview
Buy now to download the full PDF (30 pages)
Need quotation for your management?
Get a formal quotation for GB/T 36075.2-2018 in 30 minutes.
Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
March 15, 2018
Implementation date
October 1, 2018
Scope
GB/T 36075.2-2018 is the English-translated version of 声学 室内声学参量测量 第2部分：普通房间混响时间.
GB/T 36075.2-2018 is the Chinese standard "Acoustics -- Measurement of room acoustic parameters -- Part 2: Reverberation time in ordinary rooms".
Its scope clause reads: This part of GB/T 36075 specifies the measurement method, measurement procedure, measurement equipment, number of measurement points, and results of reverberation time in common rooms.
Evaluation and test report style. The measurement results can be used to calculate the correction term in acoustic measurements such as sound pressure level measurement and sound insulation measurement, and can be used to reverberate with the room. Time design requires comparison. Its clauses include terms and definitions.
Found what you need?
Document preview — GB/T 36075.2-2018
National Standard of the People's Republic of China
- ICS
- 91.120.20
- Classification
- A 59
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Test Condition
- 5 Measurement Method
- 6 decay curve evaluation
- 7 Measurement uncertainty
- 8 space average
- 9 Result Expression
- Appendix A (Informative) Measurement Uncertainty
- Appendix B (Informative) Evaluation of Nonlinear Decay Curves
- Appendix C (Informative) Least Squares Fitting Formula
1 Scope
This part of GB/T 36075 specifies the measurement method, measurement procedure, measurement equipment, number of measurement points, and results of reverberation time in common rooms.
Evaluation and test report style.
The measurement results can be used to calculate the correction term in acoustic measurements such as sound pressure level measurement and sound insulation measurement, and can be used to reverberate with the room.
Time design requires comparison.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 36075.1-2018 Measurement of Acoustic Parameters in Acoustic Chambers Part 1. Viewing Space (ISO 3382-1.2009, IDT)
ISO 18233 Acoustics-Application of new Acoustics-Application ofnew in Architectural Acoustics and Room Acoustics
Measurementmethodsinbuildingandroomacoustics)
IEC 61260 Electroacoustic Octave and Fractional Octave Filters (Electroacoustics-Octave-bandandfractional-
Octave-bandfilters)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Decay curve
Describes a graph in which the sound pressure level decays with time in a room in the room after the sound source stops sounding.
[GB/T 20247-2006, Definition 3.1]
Note. The decay curve can be measured either after the continuous noise in the room is cut off or it can be obtained by inverse integration of the impulse response.
3.2 Interrupted sound source method
A method of obtaining a decay curve by directly recording the decay of the sound pressure level after an excitation of a broadband or narrowband sound source in the room to interrupt the sound.
[GB/T 20247-2006, definition 3.3]
3.3 Impulse response integration method
The method of obtaining the decay curve by integrating the inverse of the square of the impulse response against time.
[GB/T 20247-2006, definition 3.4]
3.4 Impulse response
The time-varying sound pressure formed by the Dirac pulse emitted from one point in the room at another point.
[GB/T 20247-2006, definition 3.5]
GB/T 31004.1 | GB/Z 27764 | GB/T 25078.1 | GB/T 15173 | GB/T 36079 | GB/T 36075.3 | […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
Normative references
ISO 3382 · ISO 18233 · IEC 61260
Cited by
- GB/T 45305.5-2026Acoustics - Laboratory measurement of sound insulation of building elements - Part 5: Requirements for test facilities and equipment
- GB/T 45305.4-2025Acoustics - Laboratory measurement of sound insulation of building elements - Part 4: Measurement procedures and requirements
- GB/T 1094.10-2022Power transformers - Part 10: Determination of sound levels
- GB/T 19889.7-2022Acoustics - Measurement of sound insulation in buildings and of building elements - Part 7: Field measurement of impact sound insulation
- GB 14227-2006Acoustical requirement and measurement on station platform of urban rail transit
How to Download GB/T 36075.2-2018
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 36075.1-2018 — Acoustics -- Measurement of room acoustic parameters -- Part 1: Performance spaces
GB/T 36075.3-2018 — Acoustics -- Measurement of room acoustic parameters -- Part 3: Open plan offices
GB/T 10003-2026 — Biaxially oriented polypropylene (BOPP) film
Secure payment via Stripe
Payments accepted
GB/T 36075.2-2018
$235.00