【摘要】 韵律边界是口语交际互动的重要线索，其感知高度依赖于声学线索。本文以《新闻联播》的播读语料为研究对象，采用声学手段对韵律边界音节进行系统研究。结果显示：韵律边界音节的时长均大于非边界音节，而音高和音强则小于非边界音节。此外，韵律边界位置上的阳平和上声存在挤喉音。调音方面，男性和女性的共鸣效果好，高频能量均有所增强，且男性存在演讲者共振峰。本文探究了新闻播音的韵律特性，研究成果可为指导播音教学实践提供一定参考。更多还原

【Abstract】 Prosodic boundary is an important cue for oral communication, and its perception is highly dependent on acoustic cues. Taking the reading materials from CCTV news as the object, the present study investigates the acoustic characteristics of prosodic boundary syllables using acoustic analysis. The results show that the duration of prosodic boundary syllables is longer than that of non-boundary syllables, while the pitch and intensity of prosodic boundary syllables are lower than that of non-boundary syllables. In addition, creaky voice occurs with Tone 2 and Tone 3. Regarding articulation, both males and females have sound resonance effects, with enhanced high-frequency energy, and males have speaker’s formant. This study not only reveals the prosodic characteristics of news broadcasting, but also provides certain guidance for broadcasting teaching practice.更多还原