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Safety Considerations for Motorcycle Helmet Headphones
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English
Abstract
In recent years, sophisticated audio systems have been installed on touring motorcycles. One feature of these systems is the provision for headphones on or inside the safety helmets. With such an installation, the rider must still be able to perceive safety-related sounds, such as the siren of an emergency vehicle. This paper considers the spectral characteristics of sirens and ambient motorcycle noise, and the sound attenuation of helmets in general. This leads to the specification of characteristics for an audio filter which attenuates the program amplitude in the spectral region of a siren. The result permits the rider to hear a siren with adequate warning, yet maintains the desired high level of sound quality.
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Citation
Smith, J. and Weir, D., "Safety Considerations for Motorcycle Helmet Headphones," SAE Technical Paper 830471, 1983, https://doi.org/10.4271/830471.Also In
References
- Fidell, S. Pearsons, K. S. Bennett, R. “Prediction of Aural Detectability of Noise Signals,” “Human Factors,” 1974 16 (4)
- Potter, R. C. Fidell, S. A. Myles, M. M. Keast, D. N. “Effectiveness of Audible Warning Devices on Emergency Vehicles,” U.S. Dept. of Transportation, Report No. DOTTSC OST7738