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Quadrisyllabic words and phrases with normal stress of Mandarinwere used to study the tonal coarticuation.It was firstly found that the F_0perturbation at the starting—point and the ending—point of the F_0 curve ineach syllable caused by tonal coarticulation is larger than the intrinsic F_0 dif-ference of vowels at the starting—point and the ending—point of it.As for thetonal coarticulation,it was discovered that tonal coarticulation in word andphrase with normal stress is different to that in the nonsense sequence with evenstress,and in word and phrase with normal stress,the tonal coarticulatory ef-fects are unidirectional,and the carryover effect does not extend to theending—point of tone—section of the following syllable and the anticipatory ef-fect does not extend to the starting-point of tone-section of the preceding one,and the F_0 perturbation by tonal coarticulation has its pattern.
Quadrisyllabic words and phrases with normal stress of Mandarinwere used to study the tonal coarticuation. It was found that the F_perturbation at the starting-point and the ending-point of the F_0 curve ineach syllable caused by tonal coarticulation is larger than the intrinsic F_0 dif -ference of vowels at the starting-point and the ending-point of it.As for thetonal coarticulation, it was discovered that tonal coarticulation in word andphrase with normal stress is different to that in the nonsense sequence with evenress, and in word and phrase with normal stress, the tonal coarticulatory ef-fects are unidirectional, and the carryover effect does not extend to the end-point of tone-section of the following syllable and the anticipatory ef-fect does not extend to the starting-point of tone-section of the preceding one, and the F_0 perturbation by tonal coarticulation has its pattern.