(1) When vowel and consonant duration cues are ambiguous between /ku·lÓ™/ and /kulÓ™/ an early F0 rise, relative to the vowel-consonant boundary, will tend to favor identification of stimuli as /ku lÓ™/, while a later F0 rise increases the number of /kulÓ™/ judgments somewhat. (2) When vowel duration cues are ambiguous between /’bilisd/ and /bi’lisd/ an F0 rise before the intervocalic consonant will significantly increase the number of/’bilisd/ identifications, whereas an F0 rise after the consonant yields more judgments of /’bilisd/. The latter result corroborates the acoustic observation that initial voiced consonants in stressed syllables dissociate tonally from the vowel and join up with the preceding material, if any, to the effect that tonally the stress seems to