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Comparison of Different Listening Systems for Speech Intelligibility Tests

Being able to have a fast and reliable evaluation of speech intelligibility inside cars is of utmost importance during interiors design phase. Performing subjective tests inside car compartments is a time consuming task and therefore not suitable for industrial processes. Moreover, comparison of different car fittings and database implementation cannot be performed in an easy and fast way. The effectiveness of virtual listening systems was therefore investigated in the context of a research project that involves both UNIPR and an important carmaker. A preliminary subjective evaluation session in real cars was carried out. Two different virtual listening systems were compared to investigate the best configuration for the intelligibility test. In this paper a comparison of the systems is presented and the provided experimental results show that the tests performed in the listening room are consistent with the ones carried out in car compartments.

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