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dc.contributor.authorClements, Mark A.
dc.contributor.authorKalgaonkar, Kaustubh
dc.contributor.authorKim, Jonathan
dc.date.accessioned2018-03-30T20:00:27Z
dc.date.available2018-03-30T20:00:27Z
dc.date.issued2008-06
dc.identifier.urihttp://hdl.handle.net/1853/59473
dc.descriptionIssued as final reporten_US
dc.description.abstractSimulating talker-to-listener distance (TLD) in virtual audio environments requires mimicking natural changes in vocal effort. Studies have identified several acoustic parameters manipulated by talkers when varying vocal effort. However, no systematic study has investigated vocal effort variations due to TLD, under natural conditions, and their perceptual consequences. This work examined the feasibility of varying the vocal effort cues for TLD in synthesized speech and real speech by (a) recording and analyzing single word tokens spoken at a range between 1 and 32 meters, (b) creating synthetic and modified speech tokens that vary in one or more acoustic parameters associated with vocal effort, and (c) conducting perceptual tests on the reference, synthetic, and modified tokens to identify salient cues for TLD perception. Measured changes in fundamental frequency, intensity, and formant frequencies of the reference tokens across TLD were similar to other reports in the literature. Perceptual experiments that asked listeners to estimate TLD showed that TLD estimation is most accurate with real speech; however significant standard deviations in the responses suggest that reliable judgments can only be made for gross changes in TLD.en_US
dc.description.sponsorshipSensimetrics Corporationen_US
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.relation.ispartofseriesSchool of Electrical and Computer Engineering ; Project no. 104691en_US
dc.subjectAcoustic cuesen_US
dc.subjectSynthetic speechen_US
dc.subjectVirtual audio environmentsen_US
dc.titleTalker-to-listener distance effects on speech production and perceptionen_US
dc.title.alternativeSTTR: Identification & application of acoustic cues of vocal effort changesen_US
dc.typeTechnical Reporten_US
dc.contributor.corporatenameGeorgia Institute of Technology. Office of Sponsored Programsen_US
dc.contributor.corporatenameGeorgia Institute of Technology. School of Electrical and Computer Engineeringen_US


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