汉语的重音由于受到声调、语调以及韵律单元层级的干扰和制约，对于重音的自动感知一直是比较困难的问题。

Restricted by prosody hierarchy and disturbed by tone and intonation, it is a hard task to detect the stress of Chinese speech automatically.

youdao

韵律短语和语调短语边界的声学线索是低音线重置和无声段。

The acoustics correlates of prosodic phrase and intonational phrase are pitch reset of bottom line of intonation and insertion of silence.

youdao

语调短语是一个话语单元，它有相对完整的语调和韵律结构，往往有停顿和边界语调标示；它可以再切割成语调次短语。

The intonational phrase is a unit of utterance, possessing an organic prosodic structure, and usually delimited by a pause and a boundary tone, capable of being subdivided into intermediate phrases.

youdao