Recognition of vowels in connected speech by use of the characteristics on perception of vowel

A method for vowel recognition is proposed on the basis of the results obtained from the experiments of vowel perception. The method consists of two stages: First, the formant frequency pattern is transformed into the vowel quality represented as the coordinate on Psychological Auditory Space(PAS), which has been constructed applying Kruskal´s method of multidimensional scaling. Second, the vowel is identified according as which vowel area on PAS the vowel quality belongs to. Here, the vowel identification is performed utilizing the context effect measured quantitatively by the psychological experiments. The experiment of vowel recognition was carried out using the vowels in connected speech.