| Abstract | Word-initial Pattani Malay consonants are short or long. The closures of the “long” consonants are longer than those of the “short” ones; this is a sufficient cue for perception, but in voiceless plosives the duration of the silent closure is audible only after a vowel, yet listeners label such isolated words well and so must use other cues. The peak amplitudes for the first syllables of disyllabic words are greater for initial long plosives. In this study, increments of closure duration and amplitude were pitted against each other for original short plosives and decrements for original long plosives. In tests, duration was by far the more powerful cue, although amplitude did affect the category boundary. By itself, however, amplitude is a weak cue. Further work is planned on the possible role of the shaping of the amplitude contour. |