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[Acoustic analysis in different background of hearing]
Yun Liu1, Daoxing Zhang, Yongxiang Liu
1Department of Otolaryngology, Beijing Friendship Hospital, Capital University of Medical Sciences, Beijing 100050.
Lin Chuang Er Bi Yan Hou Ke Za Zhi = Journal of Clinical Otorhinolaryngology
|October 28, 2003
Summary
Normal hearing individuals raise their fundamental frequency (F0) when speaking in noisy environments. Voice acoustic analysis reveals significant F0 changes in various noise conditions.
Area of Science:
- Speech Science
- Acoustic Analysis
- Human Auditory Perception
Context:
- Understanding voice adaptation in noisy environments is crucial for communication.
- Background noise significantly impacts speech production and perception.
- Previous research has explored voice changes, but acoustic analysis in diverse noise types requires further investigation.
Purpose:
- To investigate voice changes in individuals with normal hearing under different background noise conditions using computer acoustic analysis.
- To assess the impact of white band noise and speech noise on vocal parameters.
Summary:
- Twenty-five participants with normal hearing and vocal cords underwent voice recordings in quiet, white band noise, and speech noise conditions.
- Acoustic analysis software (MDVP) measured fundamental frequency (F0), jitter, shimmer, APQ, PPQ, and HNR.
- Results indicated significantly higher fundamental frequencies in noisy conditions for both male and female participants across sustained vowels /a/ and /i/.
Impact:
- Normal hearing individuals demonstrate increased fundamental frequency when exposed to noisy surroundings.
- This finding contributes to understanding physiological voice adjustments in challenging acoustic environments.
- The study highlights the utility of acoustic analysis in quantifying voice modifications due to noise exposure.