语音传输指数(Speech Transmission Index,STI)是一个用于评估语音信号传输质量的指标,测量方法有完整STI法与公共广播系统语音传输指数(Speech Transmission Index for Public Address Systems,STIPA)法,使用AWA6292型多功能声级计与AW...语音传输指数(Speech Transmission Index,STI)是一个用于评估语音信号传输质量的指标,测量方法有完整STI法与公共广播系统语音传输指数(Speech Transmission Index for Public Address Systems,STIPA)法,使用AWA6292型多功能声级计与AWA5512型智能声源,介绍采用STIPA法所进行的无扩声时的测量、有扩声系统且含有传声器输入时的测量、有扩声系统且通过线路输入的测量,并详细介绍仪器的操作,可将其应用于会议室、教室、礼堂、体育馆、广播站,以及听力辅助系统的测试中,为相关领域的从业者提供有价值的参考。展开更多
Speech intelligibility (SI) is an important index for the design and assessment of speech purpose hall. The relationship between Chinese speech intelligibility scores in rooms and speech transmission index (STI) under...Speech intelligibility (SI) is an important index for the design and assessment of speech purpose hall. The relationship between Chinese speech intelligibility scores in rooms and speech transmission index (STI) under diotic listening condition was studied using monaural room impulse responses obtained from the room acoustical simulation software Odeon in previous paper. The present study employs the simulated binaural room impulse responses and auralization technique to obtain the subjective Chi- nese speech intelligibility scores using rhyme test. The relationship between Chinese speech intelligi- bility scores and STI is built and validated in rooms using dichotic (binaural) listening. The result shows that there is a high correlation between Chinese speech intelligibility scores and STI using di- chotic listening. The relationship between Chinese speech intelligibility scores and STI under diotic and dichotic listening conditions is also analyzed. Compared with diotic listening, dichotic (binaural) listening (an actual listening situation) can improve 2.7 dB signal-to-noise ratio for Mandarin Chinese speech intelligibility. STI method can predict and evaluate the speech intelligibility for Mandarin Chi- nese in rooms for dichotic (binaural) listening.展开更多
The relation between the speech intelligibility of Chinese and the speech transmission index (STI)is discussed, which is based on some useful properties of the modulation transfer function (MTF)and the result obtained...The relation between the speech intelligibility of Chinese and the speech transmission index (STI)is discussed, which is based on some useful properties of the modulation transfer function (MTF)and the result obtained by articulation tests under different signal-to-noise ratios.展开更多
文摘语音传输指数(Speech Transmission Index,STI)是一个用于评估语音信号传输质量的指标,测量方法有完整STI法与公共广播系统语音传输指数(Speech Transmission Index for Public Address Systems,STIPA)法,使用AWA6292型多功能声级计与AWA5512型智能声源,介绍采用STIPA法所进行的无扩声时的测量、有扩声系统且含有传声器输入时的测量、有扩声系统且通过线路输入的测量,并详细介绍仪器的操作,可将其应用于会议室、教室、礼堂、体育馆、广播站,以及听力辅助系统的测试中,为相关领域的从业者提供有价值的参考。
基金the National Natural Science Foundation of China (Grant No. 10774048)
文摘Speech intelligibility (SI) is an important index for the design and assessment of speech purpose hall. The relationship between Chinese speech intelligibility scores in rooms and speech transmission index (STI) under diotic listening condition was studied using monaural room impulse responses obtained from the room acoustical simulation software Odeon in previous paper. The present study employs the simulated binaural room impulse responses and auralization technique to obtain the subjective Chi- nese speech intelligibility scores using rhyme test. The relationship between Chinese speech intelligi- bility scores and STI is built and validated in rooms using dichotic (binaural) listening. The result shows that there is a high correlation between Chinese speech intelligibility scores and STI using di- chotic listening. The relationship between Chinese speech intelligibility scores and STI under diotic and dichotic listening conditions is also analyzed. Compared with diotic listening, dichotic (binaural) listening (an actual listening situation) can improve 2.7 dB signal-to-noise ratio for Mandarin Chinese speech intelligibility. STI method can predict and evaluate the speech intelligibility for Mandarin Chi- nese in rooms for dichotic (binaural) listening.
文摘The relation between the speech intelligibility of Chinese and the speech transmission index (STI)is discussed, which is based on some useful properties of the modulation transfer function (MTF)and the result obtained by articulation tests under different signal-to-noise ratios.
