Speech screening of sibilant fricative phonemes is an important tool for oral health care. Nevertheless, screening as a function of quantitative geometrical markers is mostly limited to teeth features whereas the minimum area of the narrowed air passage upstream from the tooth is known to be a key production feature. The minimum area is estimated from non-invasive aerodynamic measurements using a laminar flow model. The influence of viscid flow losses on the area estimation is shown to be negligible. Current data suggest that speech screening is most effective for phoneme /s/, which supports common practice in oral health care. (C) 2015 Acoustical Society of America
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机译：安静的摩擦音的语音筛选是口腔保健的重要工具。然而，作为定量几何标记的函数的筛选主要限于牙齿特征，而已知在牙齿上游的狭窄空气通道的最小面积是关键的生产特征。最小面积是使用层流模型根据非侵入式空气动力学测量估算的。粘性流量损失对面积估计的影响被证明是可以忽略的。当前数据表明语音筛查对于音素/ s /最有效，这支持口腔保健中的常规做法。 （C）2015美国声学学会
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