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Speech intelligibility of virtual humans
Annelies Devesse1, Alexander Dudek1, Astrid van Wieringen1
1a KU Leuven , - University of Leuven, Department of Neurosciences, ExpORL , Leuven , Belgium.
International Journal of Audiology
|September 29, 2018
Summary
Virtual human speakers enhance speech intelligibility. This study developed and tested auditory-visual speech assessment tools, showing virtual humans can improve understanding in noisy conditions.
Area of Science:
- Audiology
- Human-Computer Interaction
- Speech Science
Background:
- Visual speech cues significantly improve oral communication.
- Ecologically valid auditory assessments require processing of both auditory and visual speech.
- Current assessment methods may not fully capture real-world communication dynamics.
Purpose of the Study:
- To develop and evaluate a virtual human speaker for auditory-visual speech assessment.
- To investigate the effectiveness of virtual humans in speech reading and intelligibility tests.
Main Methods:
- Development of male and female virtual human speakers.
- Evaluation through visual-only speech reading tests and auditory-visual speech intelligibility tests.
- Inclusion of skilled speech readers and young normal-hearing participants.
Main Results:
- Skilled speech readers achieved 57-67% accuracy with virtual speakers.
- Auditory-visual presentation with virtual humans improved sentence intelligibility in noise by 1.5-2 dB.
- Virtual speakers demonstrated potential for speech assessment.
Conclusions:
- Virtual humans are a viable tool for auditory-visual speech assessment.
- This technology can aid in developing more ecologically valid communication evaluations.
- Future research can expand the use of virtual humans in audiology.
Keywords:
Speech perceptionauditory-visual speechbehavioural measuresinstrumentationpsychoacoustics/hearing sciencevirtual humansMore Related Videos
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