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The perception of vowels heard in noises of various spectra is analyzed by means of stimulus-response matrices. The stimulus vowels were spoken in PB-word lists and in syllable lists in which the vowels were equally probable. The matrices show shifts in vowel confusions depending on how different noise spectra mask the vowel formants. Vowel duration and intensity are measured and related to vowel perception. Vowel guessing is related to past training.
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J. M. Pickett (1957) studied this question.
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