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Figure 2


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Acoustic descriptors (see Tab. 1) for exterior (microphone at 7.5 m, open symbols) and interior (HATS, closed symbols) recordings, and both vehicle types (encoded by the color). Shown are a) the A-weighted equivalent sound pressure level LAeq, b) the peak loudness level LN5, c) the LCeq, d) the peak tonality T5, e) the peak Aures sharpness SA5, f) the peak roughness R5, and g) the peak DIN-sharpness SD5. The error bars show the 95% confidence intervals.

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