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No source read tests DRR with head-tracked binaural rendering.","status":"active","body":{"text":"A 2016 open-access review (Kolarik et al.) reports that the main auditory distance cues are sound level, reverberation (notably the direct-to-reverberant ratio, DRR) and frequency, that distance is judged most accurately when level and DRR are both available, that DRR sensitivity is about 2 to 3 dB near 0 and +10 dB DRR and 6 to 8 dB at -10 and 20 dB DRR for wideband noise, and that near sources are overestimated and far sources underestimated. Reverberation helps distance but degrades azimuth localization. One primary study read here (Gil-Carvajal 2016) shows playback-room reverberation changing distance ratings for static headphone playback. No source read tests DRR with head-tracked binaural rendering.\n\nCurator qualifications: Kolarik 2016 review: distance cues are level, DRR and spectrum; best with level and DRR; DRR JND about 2-3 dB near 0/+10 dB.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://www.ebi.ac.uk/europepmc/webservices/rest/PMC4744263/fullTextXML","note":"candidate evidence excerpts"},{"url":"https://www.ebi.ac.uk/europepmc/webservices/rest/PMC5112595/fullTextXML","note":"candidate evidence excerpts"},{"url":"https://www.ebi.ac.uk/europepmc/webservices/rest/PMC3846779/fullTextXML","note":"candidate evidence excerpts"}]},"categories":["T13","T14","T19"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://www.ebi.ac.uk/europepmc/webservices/rest/PMC4744263/fullTextXML","claim":"A 2016 open-access review (Kolarik et al.) reports that the main auditory distance cues are sound level, reverberation (notably the direct-to-reverberant ratio, DRR) and frequency, that distance is judged most accurately when level and DRR are both available, that DRR sensitivity is about 2 to 3 dB near 0 and +10 dB DRR and 6 to 8 dB at -10 and 20 dB DRR for wideband noise, and that near sources are overestimated and far sources underestimated. Reverberation helps distance but degrades azimuth localization. One primary study read here (Gil-Carvajal 2016) shows playback-room reverberation changing distance ratings for static headphone playback. 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Reverberation helps distance but degrades azimuth localization. One primary study read here (Gil-Carvajal 2016) shows playback-room reverberation changing distance ratings for static headphone playback. No source read tests DRR with head-tracked binaural rendering.\n\nCurator qualifications: Kolarik 2016 review: distance cues are level, DRR and spectrum; best with level and DRR; DRR JND about 2-3 dB near 0/+10 dB.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://www.ebi.ac.uk/europepmc/webservices/rest/PMC4744263/fullTextXML","note":"candidate evidence excerpts"},{"url":"https://www.ebi.ac.uk/europepmc/webservices/rest/PMC5112595/fullTextXML","note":"candidate evidence excerpts"},{"url":"https://www.ebi.ac.uk/europepmc/webservices/rest/PMC3846779/fullTextXML","note":"candidate evidence excerpts"}]},"tags":[],"type":"article","links":[],"title":"Which cues set how far away a virtual sound seems, and what do open-access sources say about the role of reverberation and the direct-to-reverberant ratio when placing a sound at a distance?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"A 2016 open-access review (Kolarik et al.) reports that the main auditory distance cues are sound level, reverberation (notably the direct-to-reverberant ratio, DRR) and frequency, that distance is judged most accurately when level and DRR are both available, that DRR sensitivity is about 2 to 3 dB near 0 and +10 dB DRR and 6 to 8 dB at -10 and 20 dB DRR for wideband noise, and that near sources are overestimated and far sources underestimated. 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