粵語聲調與降勢音高

文章通過聲學實驗分析香港粵語聲調在不同言語形式中(包括單字調、語流中及唱歌時)的語音變體。實驗結果顯示單字調實際上是聲調與降勢音高的疊加。降勢音高是說話時的一種默認的語調，附加於單字調和語流中，傳統所認為的香港粵語“平調”實際上都顯現出一定程度的下降趨勢。文章進而提出香港粵語中聲調和語調的關系，不僅是音階疊加的“代數和”，還是調形疊加的“代數和”。
This study investigates systematically the pitch patterns of Hong Kong Cantonese lexical tones in isolated citation form, continuous speech and singing context through acoustic experiments. The results show that tones in isolated citation form are the algebraic sum of canonical tones and a declining intonation, which is a default intonation in speaking speech (including both isolated citation form and continuous speech). Consequently, the acoustic contours of the putative "level" tones in Hong Kong Cantonese exhibit a slight falling tendency. We further propose that the "algebraic sum" of tone and intonation refers to both pitch register and pitch contour. Copyright © 2017 徐州師範大學語言所.