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Percept."],"published-print":{"date-parts":[[2016,7,29]]},"abstract":"As sound propagation algorithms become faster and more accurate, the question arises as to whether the additional efforts to improve fidelity actually offer perceptual benefits over existing techniques. Could environmental sound effects go the way of music, where lower-fidelity compressed versions are actually favored by listeners? Here we address this issue with two acoustic phenomena that are known to have perceptual effects on humans and that, accordingly, might be expected to heighten their experience with simulated environments. We present two studies comparing listeners\u2019 perceptual response to both accurate and approximate algorithms simulating two key acoustic effects: diffraction and reverberation. For each effect, we evaluate whether increased numerical accuracy of a propagation algorithm translates into increased perceptual differentiation in interactive virtual environments. Our results suggest that auditory perception does benefit from the increased accuracy, with subjects showing better perceptual differentiation when experiencing the more accurate rendering method: the diffraction experiment shows a more linearly decaying sound field (with respect to the diffraction angle) for the accurate diffraction method, whereas the reverberation experiment shows that more accurate reverberation, after modest user experience, results in near-logarithmic response to increasing room volume.<\/jats:p>","DOI":"10.1145\/2947508","type":"journal-article","created":{"date-parts":[[2016,7,29]],"date-time":"2016-07-29T13:35:43Z","timestamp":1469799343000},"page":"1-18","update-policy":"http:\/\/dx.doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["Psychoacoustic Characterization of Propagation Effects in Virtual Environments"],"prefix":"10.1145","volume":"13","author":[{"given":"Atul","family":"Rungta","sequence":"first","affiliation":[{"name":"University of North Carolina at Chapel Hill"}]},{"given":"Sarah","family":"Rust","sequence":"additional","affiliation":[{"name":"University of North Carolina at Chapel Hill"}]},{"given":"Nicolas","family":"Morales","sequence":"additional","affiliation":[{"name":"University of North Carolina at Chapel Hill"}]},{"given":"Roberta","family":"Klatzky","sequence":"additional","affiliation":[{"name":"Carnegie Mellon University"}]},{"given":"Ming","family":"Lin","sequence":"additional","affiliation":[{"name":"University of North Carolina at Chapel Hill"}]},{"given":"Dinesh","family":"Manocha","sequence":"additional","affiliation":[{"name":"University of North Carolina at Chapel Hill"}]}],"member":"320","published-online":{"date-parts":[[2016,7,29]]},"reference":[{"key":"e_1_2_2_1_1","doi-asserted-by":"publisher","DOI":"10.1121\/1.382599"},{"key":"e_1_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apacoust.2011.09.004"},{"key":"e_1_2_2_3_1","first-page":"895","article-title":"Perceptual effects of synthetic reverberation on three-dimensional audio systems","volume":"40","author":"Begault Durand R.","year":"1992","unstructured":"Durand R. 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