Two production experiment were carried out to study the the voice onset time categories of Uygur word-initial voiceless and voiced stops and the production of Mandarin Chinese voiceless aspirated and unaspirated stops by Uygur students.

Having the phonetic experience of aspiration in the allophones of voiceless stops in their native language, the learners could identify the aspirated SC stops very well, but their identification on unaspirated stops is poor.

We investigate in this paper the intermediate and advanced Indonesian learners’ acquisition of stops and affricates in standard Chinese through such techniques of experimental phonetics as VOT(voice onset time), aspirate length, syllable duration, closure length and voice interval.

All languages share plosives in their consonant phoneme inventories.

The plosives in English and Mandarin Chinese are differently characterized,the former being distinguished by the distinctive feature of voice,and the latter aspiration.

This paper uses experimental method to study the acoustic characteristic of plosives, affricates and nasals of Taiyuan dialect.

Glottal stops of patients with cleft palate:A preliminary acoustic study;

Clinicians always find it is difficult to identify the glottal stops correctly.

Objective observe the acoustic characteristics of glottal stops produced by patients with cleft palate and compare them with the normal peers,trying to provide some evidences for clinical diagnosing and treatment.