Persian vowel space normalization
Author(s):
Abstract:
This study is to evaluate vowel normalization procedures in Persian, from IRIB broadcasters, on the basis of their effectiveness in neutralizing differences in vowel formant data due to inter-speaker physiological and anatomical-gender- differences. The selection among various normalization techniques (hertz, Mel, Bark, Erb, Gertsmann, Lobanov, Neary, Watt, and Fabricius) depends on their significance in the previous literature and the kind of measurement involved in the provided database. The assessment is mainly performed based on two factors,vowel space overlapping and discriminant analysis . The first factor is done on the basis of increasing in mapping between speakers vowel spaces along the degree of overlap between the two vowel spaces, expressed in terms of that percentage of the male speakers s vowel spaces which overlaps with the female speakers vowel spaces and vice versa.The second part of analysis is devoted to for the importance of maintaining vowels informations and the power of vowel separation. The results indicate that Neary is the best way in minimizing the physiological effect in Persian while keeping vowel separations power safe.
Keywords:
Language:
Persian
Published:
Research in Linguistics, Volume:7 Issue: 2, 2016
Pages:
15 to 34
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