Analysis of Spectrum and Spectrogram in Different Background of Hearing
- VernacularTitle:不同噪声环境中嗓音声谱特点
- Author:
Yun LIU
;
Daoxing ZHANG
;
Yongxiang LIU
- Publication Type:Journal Article
- Keywords:
Acoustic analysis;
Spectrum;
Noise
- From:
Journal of Audiology and Speech Pathology
1998;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To find out the changes of voice in different noisy background by computer acoustic analysis.Methods 25 young people with normal hearing and normal vocal cords were selected.Sustained /a/ and /i/ were recorded in three different background:quiet, white band noise and speech noise. The software of Multi Speech and Doctor Speech were used. Testing parameters included: Fo, mean amplitudes, standard deviations of amplitudes,F 1, F 2.Results Fundamental frequencies of noisy groups were significantly higher in male-/a/, female-/a/ and female-/i/.F 1 of noisy groups were significantly higher in male-/a/, male-/i/ and female-/i/.Conclusion Fo and F 1 of normal people can be changed by noise of backgroud.
