Browse Publications Technical Papers 1999-01-1817
1999-05-17

A Generalized Psychoacoustical Model of Modulation Parameters (Roughness) for Objective Vehicle Noise Quality Evaluation 1999-01-1817

In the assessment of vehicle noise quality, sound characteristics caused by modulation play an important role because they contribute significantly to the perceived annoyance. The sensations can be roughness, rumble or fluctuation strength depending mainly on the modulation frequency range.The proposed generalized model for modulation parameters was developed as part of a research program with the aim of establishing an onboard analysis system for vehicle interior noise quality based on objective sound parameters. The model can be adjusted by model parameters to calculate versions of roughness, thereby accentuating different psychoacoustical assumptions. The model was successfully tested as reported in [1].

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