Interaction Between Head Movement Behavior and Simulated Spatial Filtering: Comparing Free Conversation and Speech Tests in Virtual Reality.
The benefit provided by hearing devices often differs between laboratory evaluations and real-world conditions, due to low signal-to-noise ratio (SNR) in adaptive speech tests and differences in head movement behavior between laboratory evaluations and real conversations. This study aimed to investi...
| Publicado en: | Trends in Hearing Vol. 30; pp. 1 - 18 |
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| Autores principales: | , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
7/8/2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=195272838&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 195272838 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 23312165 HCEJ jtl: Trends in Hearing issn: 23312165 maglogo: N pubinfo: dt: 7/8/2026 vid: 30 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 195272838 195272838 195272838 10.1177/23312165261465698 195272838 ppf: 1 ppct: 17 formats: tig: atl: Interaction Between Head Movement Behavior and Simulated Spatial Filtering: Comparing Free Conversation and Speech Tests in Virtual Reality. aug: au: Grimm, Giso Kothe, Angelika Hohmann, Volker affil: Auditory Signal Processing and Cluster of Excellence "Hearing4all", Department of Medical Physics and Acoustics, Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany sug: subj: Spatial Perception Evaluation Audiometry, Speech Movement Head Physiology Hearing Aids Noise Adverse Effects Sound Localization Speech Perception Evaluation Virtual Reality Conversation Human Male Female Adult Funding Source Comparative Studies Acoustic Stimulation Speech Acoustics Sensitivity and Specificity Speech Discrimination Tests Speech Reception Threshold Test Task Performance and Analysis Speech Intelligibility Repeated Measures Analysis of Variance T-Tests Post Hoc Analysis Descriptive Statistics Data Analysis Software Language Nonparametric Statistics Pearson's Correlation Coefficient Adult: 19-44 years Male Female ab: The benefit provided by hearing devices often differs between laboratory evaluations and real-world conditions, due to low signal-to-noise ratio (SNR) in adaptive speech tests and differences in head movement behavior between laboratory evaluations and real conversations. This study aimed to investigate whether SNR improvement provided by a spatial filter can be measured during free conversation in virtual reality (VR) and to compare this SNR improvement with the benefit measured using a speech test with two spatially separated talkers in the same VR. Two experimental conditions were tested in 11 normal-hearing participants. Condition 1 involved free conversations between a participant and two confederates represented by avatars, and Condition 2 utilized an adaptive speech test with two speakers, presented by the same avatars. Acoustic simulations were used to render speech signals, background noise and room acoustics. A spatial filter with two levels of selectivity was simulated in VR using the participant's actual dynamic head orientation. Acoustic measures of the benefit of the spatial filter were derived from these simulated signals. The benefit was higher when measured in free conversations than in the speech test. Additionally, participants were found to move their heads closer to active speakers during free conversation than during the speech test. Furthermore, SNR in free conversations was closer to SNRs typical of conversational environments. These findings suggest that the effectiveness of hearing devices can be evaluated through conversations in VR at more realistic SNRs. Consequently, this approach may improve the ecological validity of hearing aid research outcomes. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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