A new method to analyze voice range profiles (phonetograms) is described. The structured analysis is based on quantitatively determining the features: shape, area, and "speaking range" dynamics, without distorting the shape of phonetograms. The parameter sets describing these features are calculated independently of fundamental frequency, which makes it possible to compare phonetograms. Two phonetograms representing a normal and a pathological example are used to illustrate the proposed method. The process provides a tool for establishing normative data for specified groups.
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Sulter et al. (1994) studied this question.
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