What happens to externalization, distance and direction when a binaural recording made in one room is played back in a different room, and does the cause lie in what the listener sees or hears?
In one open-access experiment (Gil-Carvajal et al. 2016; 18 listeners, individual BRIRs from a 0.4 s room, static head, headphones), playing the binaural speech back in a much more reverberant room (2.8 s) left only about 18% of distance ratings correct, while direction and compactness ratings did not depend on the room; changing only what listeners could see had no effect, whereas changing what they could hear did. Reviews report a different study (Werner 2016) that found a visual effect, and caution that it lacked head motion; the sources therefore support the auditory-congruence finding for static headphone playback but not a settled answer for tracked playback.
In one open-access experiment (Gil-Carvajal et al. 2016; 18 listeners, individual BRIRs from a 0.4 s room, static head, headphones), playing the binaural speech back in a much more reverberant room (2.8 s) left only about 18% of distance ratings correct, while direction and compactness ratings did not depend on the room; changing only what listeners could see had no effect, whereas changing what they could hear did. Reviews report a different study (Werner 2016) that found a visual effect, and caution that it lacked head motion; the sources therefore support the auditory-congruence finding for static headphone playback but not a settled answer for tracked playback.
Curator qualifications: Gil-Carvajal 2016 (18 listeners): room mismatch (0.4 s BRIR replayed in 2.8 s room) left ~18% distance ratings correct; direction/compactness unaffected.
Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.
Structured fields
{
"citations": [
{
"url": "https://www.ebi.ac.uk/europepmc/webservices/rest/PMC5112595/fullTextXML",
"note": "candidate evidence excerpts"
},
{
"url": "https://www.ebi.ac.uk/europepmc/webservices/rest/PMC7488874/fullTextXML",
"note": "candidate evidence excerpts"
},
{
"url": "https://www.ebi.ac.uk/europepmc/webservices/rest/PMC9073123/fullTextXML",
"note": "candidate evidence excerpts"
}
]
}Evidence claims
- [sourced_fact] In one open-access experiment (Gil-Carvajal et al. 2016; 18 listeners, individual BRIRs from a 0.4 s room, static head, headphones), playing the binaural speech back in a much more reverberant room (2.8 s) left only about 18% of distance ratings correct, while direction and compactness ratings did not depend on the room; changing only what listeners could see had no effect, whereas changing what they could hear did. Reviews report a different study (Werner 2016) that found a visual effect, and caution that it lacked head motion; the sources therefore support the auditory-congruence finding for static headphone playback but not a settled answer for tracked playback. · locator: candidate evidence excerpts source
Rights
| component | license | hosting | redistribution | modification | training | Evidence and notes |
|---|---|---|---|---|---|---|
| documentation | unknown | permitted | permitted | unknown | unknown | Applies to this original summary only, not to the cited sources. |