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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.

Low Frequency Noise Generated by an Open Window in a Car and Its Effect on Human Comfort