Effects of Simulated Environment of Spaceflight on Phonetic Features of Speech
- VernacularTitle:模拟航天环境对发音人语音特征的影响
- Author:
Hui GAO
;
Shanguang CHEN
;
Ping AN
;
Xueyong LIU
;
Gang LIU
;
Congmin NIU
- Publication Type:Journal Article
- Keywords:
speech;
emotion;
stress;
speech analysis;
spaceflight simulation
- From:Space Medicine & Medical Engineering
2006;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study changes of phonetic features of mandarin speech when the talker is in stressed environment of spaceflight.Methods The mandarin speech database was established from volunteers speech in 72 h psychological isolation & sleep deprivation experiment,60 d head-down-tilt bed-rest experiment and 60 d sealed module experiment.The phonetic features were fundamental frequency,syllable duration and short-term energy of speech.Results In above three kinds of stressed environments,the changes of fundamental frequency were correlated with appearance of annoyance emotion of volunteers.But changes of syllable duration and short-term energy were related to different time points during experiments.Conclusion According to the findings,acoustic changes of speech under simulated environment of spaceflight may provide important reference to the study of emotional speech recognition in spaceflight for the future.
