Shen X S
Department of Oriental and African Languages and Literatures, University of Texas, Austin 78712.
Lang Speech. 1993 Oct-Dec;36 ( Pt 4):415-33. doi: 10.1177/002383099303600404.
Perceptual tests were carried out to examine (1) whether F0 is necessary to perceive stress in Mandarin, and (2) if not, which cue, duration or intensity, is more important. The results indicate that stress can be identified on the basis of duration and intensity alone; duration is a more important cue than intensity. Acoustical analyses of both natural and reiterant speech revealed that both duration and intensity were correlates of stress. There was a ratio of approximately 3:2 between the durations of stressed and unstressed vowels of the same quality, and a difference of nearly 8 dB between their intensities. In addition, segmental changes, such as consonant and vowel reduction, laryngealization, and vowel devoicing, may enhance the perception of the absence of stress.
进行了感知测试，以检验：（1）在普通话中，基频（F0）对于感知重音是否必要；（2）若不必要，时长和强度这两个线索哪个更重要。结果表明，仅根据时长和强度就能识别重音；时长是比强度更重要的线索。对自然语音和重复语音的声学分析表明，时长和强度都是重音的相关因素。相同音质的重读音节和非重读音节的时长之比约为3:2，强度之差近8分贝。此外，诸如辅音和元音弱化、喉塞音化及元音清化等音段变化，可能会增强对非重音的感知。
