Abstract
The aim of this study was to re‐examine the factors leading to stop consonant perception for consonant‐vowel stimuli with just two formants over a range of vowels, using stimuli and test procedures somewhat different from those used in earlier studies. Five two‐formant CV stimulus continua were synthesized, each covering a range of second‐formant (F2) starting frequencies, for vowels corresponding roughly to [iiæɑu]. Listeners identified the beginning of the syllable under two different instructions: a forced‐choice response of b, d, or g, and an open response set. The stimuli with the most unanimous responses were those with substantial F2 transitions, i.e., [bi bɪ du]. There were few consistent g responses. Under open response instructions, stimuli with straight or small transition ranges were identified as beginning with no consonant. The results are compared with those of other studies, particularly with regard to differences in stimulus characteristics, and are discussed in relation to theories of invariance. [Supported in part by grants from NIH.]
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