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Random Incidence Sound Absorption Measurement of Automotive Seats in Small Size Reverberation Rooms
Technical Paper
2007-01-2194
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Random incidence sound absorption measurements of automotive components such as floor carpets, seats, headliners and hoodliners are important during the design and development of noise control treatments in a vehicle. Small volume reverberation rooms [1]1 have been widely used in practice to determine the absorption properties of those components. The SAE Acoustical Materials Committee has organized a task force to develop a standard procedure for measuring random incidence sound absorption properties of flat samples, as well as automotive components in small reverberation rooms. Statistical analysis and correlation study between large reverberation rooms and small reverberation rooms of flat samples using data acquired from a recent round robin study were reported in SAE Paper 2005-01-2284 [2, 3]. Based on data acquired in the same round robin tests, this paper investigates the measurement precision of random incidence sound absorption measurements of automotive seats using small reverberation rooms.
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Citation
Pan, J., Saha, P., and Veen, J., "Random Incidence Sound Absorption Measurement of Automotive Seats in Small Size Reverberation Rooms," SAE Technical Paper 2007-01-2194, 2007, https://doi.org/10.4271/2007-01-2194.Also In
References
- Chappuis, A. “Small Size Devices for Accurate Acoustical Measurements of Materials and Parts Used in Automobiles” SAE Paper 931266
- Veen, J. R. Pan, J. Saha, P. “ Development of a Small Size Reverberation Room Standardized Test Procedure for Random Incidence Sound Absorption Testing” SAE Paper 2005-01-2284
- Veen, J. R. Pan, J. Saha, P. “Standardized Test Procedures for Small Reverberation Room” Sound and Vibration December 2005
- ASTM C423 - 02 “Standard Test Method for Sound Absorption and Absorption Coefficients by the Reverberation Room Method” April 2002 ASTM International
- International Organization for Standardization (ISO) 354 “ Acoustics - Measurement of Sound Absorption in a Reverberation Room”
- “ Instructions for the use of the Alpha Cabin” Technical Report No. 848 Rieter Automotive Systems 1993
- ASTM E691 - 99 “Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method” ASTM International 1999