华南理工大学学报（自然科学版）
華南理工大學學報（自然科學版）
화남리공대학학보（자연과학판）
JOURNAL OF SOUTH CHINA UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2015年
4期
133-137
,共5页
汉语语言清晰度%语言声压级%混响时间%留学生
漢語語言清晰度%語言聲壓級%混響時間%留學生
한어어언청석도%어언성압급%혼향시간%류학생
Chinese speech intelligibility%sound pressure level%reverberation time%foreign student
通过对一个教室室内声场的模拟，获取具有不同混响时间的两个房间脉冲响应，在不同语言声压级下获取留学生的主观汉语语言清晰度得分，探讨了语言声压级对留学生用教室室内汉语语言清晰度的影响。发现：在相同声压级下，混响时间越短，留学生的汉语语言清晰度得分越高；相同混响时间下，留学生的汉语语言清晰度得分先随语言声压级的提高而增加，当声压级达到某一极限值时，其语言清晰度得分随语言声压级的增大而降低。为了保证留学生用教室良好的室内汉语语言清晰度，在尽可能降低室内混响时间的前提下，建议教师授课声压级为62～74 dBA之间。
通過對一箇教室室內聲場的模擬，穫取具有不同混響時間的兩箇房間脈遲響應，在不同語言聲壓級下穫取留學生的主觀漢語語言清晰度得分，探討瞭語言聲壓級對留學生用教室室內漢語語言清晰度的影響。髮現：在相同聲壓級下，混響時間越短，留學生的漢語語言清晰度得分越高；相同混響時間下，留學生的漢語語言清晰度得分先隨語言聲壓級的提高而增加，噹聲壓級達到某一極限值時，其語言清晰度得分隨語言聲壓級的增大而降低。為瞭保證留學生用教室良好的室內漢語語言清晰度，在儘可能降低室內混響時間的前提下，建議教師授課聲壓級為62～74 dBA之間。
통과대일개교실실내성장적모의，획취구유불동혼향시간적량개방간맥충향응，재불동어언성압급하획취류학생적주관한어어언청석도득분，탐토료어언성압급대류학생용교실실내한어어언청석도적영향。발현：재상동성압급하，혼향시간월단，류학생적한어어언청석도득분월고；상동혼향시간하，류학생적한어어언청석도득분선수어언성압급적제고이증가，당성압급체도모일겁한치시，기어언청석도득분수어언성압급적증대이강저。위료보증류학생용교실량호적실내한어어언청석도，재진가능강저실내혼향시간적전제하，건의교사수과성압급위62～74 dBA지간。
Two room impulse responses with different reverberation time were obtained by the acoustical simulation in a classroom.The subjective Chinese speech intelligibility was evaluated by foreign students under differentspeech sound pressure level conditions.The effect of speech sound pressure level on Chinese speech intelligibility scores for foreign students in classroom was discussed.The shorter reverberation time was,the higher Chinese speech intel-ligibility scores for foreign students were under the same speech sound pressure level condition.Chinese speech in-telligibility scores first increases with the increase of speech sound pressure level under the same reverberant time condition,but the speech intelligibility scores slightly decreased with the increase of the speech sound pressure level when the sound pressure level reaches a certain value.To ensure good Chinese speech intelligibility in classroom for foreign students,a speech sound pressure level of 62~74 dBA should be recommended with a lower reverberation time as far as possible.
