CAJ | 학술논문

目的：探索随机振动和正弦振动因素下生成语音在听觉效果上的变化规律。方法：随机振动采用频率范围2-20Hz，加速度为0.3G、0.5G、0.7G(有效值，下同)，正弦振动采用频率4、6、 8、10、12Hz，加速度为0.3G、0.5G；在安静及信噪比分别为0dB和-6dB三种状态下对随机振动组、正弦振动组及对照组3个组的语音材料进行清晰度测试.结果：和对照组相比，随机振动组，清晰度几乎没有变化，正弦振动组，0.3G时4Hz、0.5G时6Hz和8Hz作用下语音清晰度有明显降低，检验结果非常显著.研究还发现，清晰度的降低随听音环境的信噪比的降低而变得严重；结论：正弦振动对发音人发音的影响，会使通话效果变差，并且在听音环境恶劣时尤为突出。
목적：탐색수궤진동화정현진동인소하생성어음재은각효과상적변화규률。방법：수궤진동채 용빈솔범위2-20Hz，가속도위0.3G、0.5G、0.7G(유효치，하동)，정현진동채용빈솔4、6、 8、10、12Hz，가속도위0.3G、0.5G；재안정급신조비분별위0dB화-6dB삼충상태하대수궤 진동조、정현진동조급대조조3개조적어음재료진행청석도측시.결과：화대조조상비，수궤진동 조，청석도궤호몰유변화，정현진동조，0.3G시4Hz、0.5G시6Hz화8Hz작용하어음청석도유 명현강저，검험결과비상현저.연구환발현，청석도적강저수은음배경적신조비적강저이변득엄중； 결론：정현진동대발음인발음적영향，회사통화효과변차，병차재은음배경악렬시우위돌출。
Objective: Changes of auditory effect on Chinese single syllables uttered by talker under random vibration or sinusoidal vibrations were investigated. Method: Random vibrations with frequency range of 2 to 20Hz were applied to sitting talker, and their accelerations being 0.3G, 0.5G and 0.7G(rms). Sinusoidal vibrations at 4, 6, 8, 10, 12Hz were also applied, their accelerations being 0.3G and 0.5G(rms). The intelligibility tests were made under three conditions(quiet, 0dB and -6dB S/N ratio). The utterances were recorded under random vibrations, sinusoidal vibrations, and the control condition. Results: as compared with the control group, there are almost no difference in the random vibration group, but the decrease of speech inteligibilities in the sinusoidal group is significant, when the frequency is 4Hz at 0.3G acceleration and when the frequencies are 6Hz or 8Hz at 0.5G acceleration. Results show that sinusoidal effects play greater roles as S/N decreases in the listenning environment. Conclusion: speech production will be changed affected by sinusoidal vibration, and the changes will deteriorate communication, especially in adverse listenning environment.