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Side-Effects of Binaural Tone Vocoding on Recognising Target Speech Presented Against Spatially Separated Speech Maskers
Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark.
Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark.
Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmar.
Eriksholm Research Centre, Oticon A/S, Snekkerste.
2012 (English)In: Speech Perception and Auditory Disorders / [ed] T Dau et al., Speech perception and auditory disorders. Proceedings of the International Symposium on Audiological and Auditory Research (ISAAR), Denmark, 2012, , 103-110 p.103-110 p.Conference paper, Published paper (Other academic)
Abstract [en]

Previous experiments have indicated that monaural Temporal Fine Structure (mTFS) information aids Speech Reception. In these experiments mTFS was either kept or substituted using a tone-vocoder. Results showed that hearing-impaired (HI) subjects were not able to utilise mTFS information to the same degree as normal-hearing (NH) subjects. A first step towards a more ecological experiment would be to exploit the tone-vocoder paradigm in a simulated spatial setup, and measure binaural TFS (bTFS) benefit.However, by the introduction of a binaural tone-vocoder, a concern arose that not only will the original Interaural Time Difference (ITD) cues be removed, but artificial ITD cues pointing to a direction determined by the phase difference between the carriers of the two channels, will also be introduced.This experiment investigated this concern, by measuring speech reception for target speech presented against spatially separated speech maskers. 21 NH and 21 HI subjects were tested in a fixed spatial condition with either the artificial ITD pointing forward (0º azimuth) or ±50º. Furthermore, a third condition utilising a paradigm that did not make use of a tone-vocoder, was included.Results showed that the artificial ITD affected NH and HI listeners equally, favouring the source whose direction it was pointing towards.

Place, publisher, year, edition, pages
Speech perception and auditory disorders. Proceedings of the International Symposium on Audiological and Auditory Research (ISAAR), Denmark, 2012. , 103-110 p.103-110 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-88006OAI: oai:DiVA.org:liu-88006DiVA: diva2:601092
Conference
Speech perception and auditory disorders, Denmark
Available from: 2013-01-28 Created: 2013-01-28 Last updated: 2016-03-23Bibliographically approved

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Lunner, Thomas

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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  • de-DE
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  • sv-SE
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