本文提出，漢語介音是否獨佔一個時間格及屬聲還是屬韻等介音的音系地位問題，可以用如下聲學上的標準判斷：（1）介音有無前穩定段；（2）前穩定段是在聲母結束處結束還是繼續延續；（3）介音滑動段是在擦音聲母結束處結束、未結束、或尚未開始。文章還指出，儘管傳統音位學對一些漢語方言介音的地位有不同的看法，但介音的聲學性質仍起作用（不同的看法最多只跨聲學分類的兩檔）。在非線性音系學的框架下，則介音與聲調的關聯可作為判定介音地位的根據。

　　In this paper, we argue that the issues on the status of Chinese medial can be judged by acoustic criteria. The issues we discussed are whether the medial of Chinese languages occupies a timing slot, and which part of syllable the medial belongs to, the onset or the rhyme. The acoustic criteria are: 1. Whether the medial has a stable stage as its first part; 2. If it has, where the stable stage ends, ends at the same point as the initial ends, or exceeds that point; 3. Where the glide stage of the medial ends; ends at the same point as the fricative initial ends, or exceeds, or does not begin at that point. We also point out that, there are correspondence between phonological criteria and acoustic criteria. Although there are different opinions on the medial status of some Chinese dialects under the traditional phonemic theory, the divergent view never beyond two acoustic scales. From the multi-linear point of view, the association of medial and tone can be a phonological criterion in question.

介音; 時間格

medial; timing slot