Abstract
This study presents interior noise characteristics of Korean high-speed train under different operation conditions. The interior noise was measured for various operating conditions such as different speeds, concrete and ballast track, and open and tunneled track, passing by another moving train. The transient variation of the sound pressure was recorded. The objective and subjective sound quality evaluation of the interior noise was performed. For quasi-static sounds measured for open lands and in tunnel, Zwicker's loudness has dominant impact on the annoyance. When there are transient variations in the sound pressure encountered during entrance, exit, and passing by, the sharpness and roughness also have significant impact on the perceived annoyance. The obtained data are useful for the design of interior of the train since the transient variation of the sound pressure level is influenced also by the sound environment in the room.
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