连续语流中韵律层级和调型组合对重音感知的影响

Influence of rhythm and tone pattern on Mandarin stress perception in continuous speech

由于汉语是声调语言,在连续语流中韵律词重音不仅会受到其所在韵律层级的影响,也会受到调型组合的影响。该文在大规模连续普通话语音数据库的基础上,从韵律层级和调型组合2方面对韵律词重音感知作了细致分析。实验结果表明,在不同韵律层级和调型组合条件下,重音感知呈现出规律性差异,主要表现为:1)随着韵律层级的上升,时长和基频都随着重音级别的增大而增大,但基频对重音感知的影响更大;2)在相斥的调型组合下,时长对重音感知的作用要显著高于其在相容调型组合下的作用;3)在连续语流中,双音节韵律词的重音模式没有显著稳定性。

As a tonal language,Mandarin stresses are closely related to tone,intonation and rhythm levels in continuous speech.Mandarin word stresses were analyzed in terms of rhythm level and tone pattern based on a large continuous speech corpus built for speech synthesis.The results show that the perceptual stress differences on the different rhythms and tone patterns have obvious regularities.1） The syllable duration gets longer and the pitch goes higher when stressed as its rhythm increases,with the pitch having a greater impact on stress perception.2） Stress perception is influenced more by duration in a conflicting tone pattern context than in a compatible tone pattern.3） There is no significant stability in disyllabic stress patterns.