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Motorcycle Noise Test Procedure Evaluation: SAE XJ331a and XJ47
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English
Abstract
SAE Recommended Practice XJ331a, Sound Levels for Motorcycles, was developed to represent vehicle operation and is well suited for determining noise levels of new motorcycles offered for sale. Similar procedures have been used for this purpose since 1969. SAE Recommended Practice XJ47, Maximum Sound Level Potential for Motorcycles, was developed as a manufacturing tool to determine a vehicle's maximum sound level potential and is an excellent tool for manufacturers. Because of its severe operating requirements, SAE XJ47 is not suited or recommended to be used as an enforcement standard.
Authors
Citation
Little, R., "Motorcycle Noise Test Procedure Evaluation: SAE XJ331a and XJ47," SAE Technical Paper 740686, 1974, https://doi.org/10.4271/740686.Also In
References
- 1960 Acoustical Terminology
- 1962 Physical Measurement of Sound
- 1971 Specification for Sound Level Meters
- 1971 Method of Measurement of Sound Pressure Levels
- SAE J184 Qualifying a Sound Data Aquisition System
- SAE J47 Maximum Sound Level Potential for Motorcycles
- 1960 Acoustical Terminology
- 1962 Physical Measurement of Sound
- 1971 Specification for Sound Level Meters
- 1971 Method of Measurement of Sound Pressure Levels
- SAE J184 Qualifying a Sound Data Aquisition System
- SAE J331 Sound Levels for Motorcycles