| Download | - View final version: Laboratory methods for measuring low-frequency sound emission (PDF, 9.8 MiB)
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| Author | Search for: Chu, W. T.1; Search for: Warnock, A. C. C.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | Acoustics and Noise Control; Acoustics; Acoustique et contrôle des bruits |
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| Abstract | ASHRAE research project 624-RP investigated measurement procedures for extending the frequency range of sound power tests in reverberation rooms down to the 63-Hz and 31-Hz octave bands both for broad-band and discrete frequency sound sources. There were four main areas of investigation: (1) a literature review, (2) a detailed study of the sound field in a model reverberation room, (3) a study of the reproducibility of the substitution method for both one-third-octave and single-frequency measurements in a number of reverberation rooms with different sizes and configurations, and (4) calibration of the sound sources used in the investigation by the intensity scan method. The project results suggest that the substitution method is the most suitable method for measuring sound power at low frequencies in reverberation rooms. The reproducibility and accuracy of the method, while larger than the values at frequencies of 10 Hz and above, appear to be acceptable. |
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| Publication date | 1993 |
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| In | |
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| Note | Also presented at the ASHRAE Annual Meeting held in Denver, CO, USA on June 26-30, 1993 |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | IRC-P-3353 |
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| NRC number | NRCC 36106
NRC-IRC-4713 |
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| NPARC number | 20386716 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 6e53ba1b-c350-4fbf-ac08-1b1c3c994286 |
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| Record created | 2012-07-25 |
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| Record modified | 2020-06-06 |
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