Abstract
The paper presents low frequency noise and infrasound excited by air flow due to an open window in a moving passenger car. This noise is analysed and its effects on a driver’s comfort are assessed. The results from all measurements (using FFT, as well as CPB analysis) show, that an open window at high speeds behaves as a source of specific tonal low-frequency noise, which is annoying, since the sound levels are relatively high. This strong low-frequency noise is analysed from the view point of its effects on the health of the exposed subjects and some recommendations are given.
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