The Development and Application of Speech Production Device for the Profound Speech Disordered

一名女播音员发出的100个音节被录了下来。对于每个音节，以80dB/oct的斜率截断400hz以下的频率。通过使用可编程数字滤波器（PDF-1024），每个音节的持续时间为450ms。这些音节然后被标记并保存，以便它们可以在任何时候通过DANAC 7000的键盘操作立即重播。对平均听力水平为103dB的成年女性（F.W.）发出的67个日语“choku-on”和“ta ka ma ga ha ra”音节的语音样本进行录音，并对其可理解性进行检测。利用双通道FFT分析仪（b&k2032）分析了/ta ka ma ga ha /的超段特征。每个音节高于F_1的频率被截断。在其持续时间和结束时间上，将女播音员的音节叠加在一起，制作这些音节。听(1)F.W.的67个音节(2)F.W.的/ta ka ma ga ha ra/(3) 67个音节的造音(4)对/ta ka ma ga ha ra/的造音进行了评价和分析。

A hundred syllables uttered by a female announcer were recorded. For each syllable, frequency under 400hz was cut off with a slope of 80dB/oct. by using a programable digital filter(PDF-1024) and the durtation of each syllable was made to be 450ms. These syllables were then labelled and saved so that they could be replayed instantly at any time by keyboard operation with DANAC 7000. Speech samples of sixty-seven syllables(Japanese choku-on) and /ta ka ma ga ha ra/ uttered by an adult female(F.W.) whose average hearing level was 103dB were recorded and their intelligibility was examined.Suprasegmental characteristics of /ta ka ma ga ha ra/ were analyzed by a dual channel FFT analyzer(B ＆ K 2032). Frequency higher than F_1 of each syllable was then cut off. On its duration and closure duration, syllables of the female announcer were superimposed to make fabrications of these syllables. Listening of (1) 67 syllables of F.W. (2) /ta ka ma ga ha ra/ of F.W. (3) the fabrications of 67 syllables (4) the fabrications of /ta ka ma ga ha ra/ was evaluated and analyzed.