Abstract
The dimension of fricative speech sounds is determined using Hurst's rescaled range analysis. Fricatives are found to be fractal with constant dimension at least for the lag range of 300 mu s to 3.5 ms. Unvoiced fricatives retain the same dimension for longer lags, with some examples remaining fractal up to a lag of 100 ms. Fractal dimension values ranging from 1.0 to 1.9 are obtained. Voiced fricatives tend to have a lower dimension that their unvoiced counterparts, as expected. Possible applications include using fractal dimension as a criterion for making the voiced/unvoiced decision in recognition of fricatives, and generating balanced LPC code book samples to match all fricatives.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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