Do you hear where I hear?: Isolating the individualized sound localization cues.
It is widely acknowledged that individualized head-related transfer function (HRTF) measurements are needed to adequately capture all of the 3D spatial hearing cues. However, many perceptual studies have shown that localization accuracy in the lateral dimension is only minimally decreased by the use...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2014-12-01
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| Series: | Frontiers in Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnins.2014.00370/full |
| _version_ | 1818518316802637824 |
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| author | Griffin David Romigh Brian D Simpson |
| author_facet | Griffin David Romigh Brian D Simpson |
| author_sort | Griffin David Romigh |
| collection | DOAJ |
| description | It is widely acknowledged that individualized head-related transfer function (HRTF) measurements are needed to adequately capture all of the 3D spatial hearing cues. However, many perceptual studies have shown that localization accuracy in the lateral dimension is only minimally decreased by the use of non-individualized head-related transfer functions. This evidence supports the idea that the individualized components of an HRTF could be isolated from those that are more general in nature. In the present study we decomposed the HRTF at each location into average, lateral and intraconic spectral components, along with an ITD in an effort to isolate the sound localization cues that are responsible for the inter-individual differences in localization performance. HRTFs for a given listener were then reconstructed systematically with components that were both individualized and non-individualized in nature, and the effect of each modification was analyzed via a virtual localization test where brief 250-ms noise bursts were rendered with the modified HRTFs. Results indicate that the cues important for individualization of HRTFs are contained almost exclusively in the intraconic portion of the HRTF spectra and localization is only minimally affected by introducing non-individualized cues into the other HRTF components. These results provide new insights into what specific inter-individual differences in head-related acoustical features are most relevant to sound localization, and provide a framework for how future human-machine interfaces might be more effectively generalized and/or individualized. |
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| format | Article |
| id | doaj.art-54d4c8344e1948998c94ed06343a5d03 |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-12-11T01:08:40Z |
| publishDate | 2014-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroscience |
| spelling | doaj.art-54d4c8344e1948998c94ed06343a5d032022-12-22T01:26:06ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2014-12-01810.3389/fnins.2014.00370102309Do you hear where I hear?: Isolating the individualized sound localization cues.Griffin David Romigh0Brian D Simpson1Air Force Research LaboratoryAir Force Research LaboratoryIt is widely acknowledged that individualized head-related transfer function (HRTF) measurements are needed to adequately capture all of the 3D spatial hearing cues. However, many perceptual studies have shown that localization accuracy in the lateral dimension is only minimally decreased by the use of non-individualized head-related transfer functions. This evidence supports the idea that the individualized components of an HRTF could be isolated from those that are more general in nature. In the present study we decomposed the HRTF at each location into average, lateral and intraconic spectral components, along with an ITD in an effort to isolate the sound localization cues that are responsible for the inter-individual differences in localization performance. HRTFs for a given listener were then reconstructed systematically with components that were both individualized and non-individualized in nature, and the effect of each modification was analyzed via a virtual localization test where brief 250-ms noise bursts were rendered with the modified HRTFs. Results indicate that the cues important for individualization of HRTFs are contained almost exclusively in the intraconic portion of the HRTF spectra and localization is only minimally affected by introducing non-individualized cues into the other HRTF components. These results provide new insights into what specific inter-individual differences in head-related acoustical features are most relevant to sound localization, and provide a framework for how future human-machine interfaces might be more effectively generalized and/or individualized.http://journal.frontiersin.org/Journal/10.3389/fnins.2014.00370/fullindividual differenceslocalizationspatial hearingbinaural hearinghead-related transfer functions |
| spellingShingle | Griffin David Romigh Brian D Simpson Do you hear where I hear?: Isolating the individualized sound localization cues. Frontiers in Neuroscience individual differences localization spatial hearing binaural hearing head-related transfer functions |
| title | Do you hear where I hear?: Isolating the individualized sound localization cues. |
| title_full | Do you hear where I hear?: Isolating the individualized sound localization cues. |
| title_fullStr | Do you hear where I hear?: Isolating the individualized sound localization cues. |
| title_full_unstemmed | Do you hear where I hear?: Isolating the individualized sound localization cues. |
| title_short | Do you hear where I hear?: Isolating the individualized sound localization cues. |
| title_sort | do you hear where i hear isolating the individualized sound localization cues |
| topic | individual differences localization spatial hearing binaural hearing head-related transfer functions |
| url | http://journal.frontiersin.org/Journal/10.3389/fnins.2014.00370/full |
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