Use of sound quality metrics for the analysis of automotive intake noise
Keywords:Air cleaners, Automobiles, Data acquisition, Dynamometers, Engines, Frequencies, Frequency modulation, Harmonic analysis, Passenger cars, Pressure effects, Speech intelligibility, Articulation index analysis, Induction noise analysis, Psychoacoustic metrics, Sound quality
AbstractThe automotive intake noise was analyzed using a psychoacoustic metrics. The psychoacoustics involves the quantitative evaluation of acoustic sound pressure level using a sound quality metrics. The metrics includes loudness, sharpness, roughness, fluctuation strength and articulation index. Loudness a standard metric describes the human preception of loud source perceived as opposed to a simply reported sound pressure level. Roughness and fluctuation strength describes the annoyance of modulating sound and sharpness describes the high frequency annoyance of noise by applying a weighting factor on sounds above 2kHz.
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