engleski

Perceptual evaluation of metamaterials as insulation partitions: A listening test within the COST action DENORMS (CA15125)

The need for improving indoor and outdoor acoustic comfort constantly drives the development of novel sound insulation and sound absorption solutions. Optimising their performance becomes reachable today by designing “metamaterials”. A pending question is whether the non-uniform spectral characteristics of metamaterials is detrimental to the subjective appreciation of their sound absorption capabilities. By means of a headphone listening test, the present study aims at perceptually comparing the pleasantness from sounds transmitted through five office- like partitions, including classical- and meta- materials. The transmitted sounds were synthesised from partition models and replayed to jurors by pairs for each stimulus. This resulted in a ranking of the test sounds - and thus of the partitions – by order of annoyance. During the recent DENORMS workshop in Leuven (Feb. 6-7, 2018), 35 jurors volunteered for the test. Furthermore, insights are given towards a definition of a quantitative sound quality metric for acoustic material design.

acoustic metamaterials, sound insulation, listening tests, acoustic comfort

nije evidentirano