Impact of Room Reverberation on Voice Quality Measures
Author Information
Author(s): Yousef Ahmed M., Hunter Eric J.
Primary Institution: Department of Communication Sciences and Disorders, University of Iowa
Hypothesis
How does simulated room reverberation affect the accuracy of voice quality metrics?
Conclusion
The study found that certain voice metrics are stable under low reverberation conditions, while others, like shimmer, are highly sensitive to even minimal reverberation.
Supporting Evidence
- Jitter, HNR, and alpha ratio were stable at reverberation times below 1 second.
- Shimmer was highly sensitive even at a reverberation time of 0.53 seconds.
- CPPs remained stable across all simulated reverberation conditions.
Takeaway
This study looked at how echo in a room can change the way we measure voice quality, showing that some measurements are more reliable than others in noisy environments.
Methodology
Voice samples were recorded in a controlled environment and then mixed with simulated reverberation effects to analyze the impact on voice quality metrics.
Limitations
The study used a limited number of participants and focused only on female voices, which may affect the generalizability of the findings.
Participant Demographics
Five healthy college-age female native English speakers.
Digital Object Identifier (DOI)
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