This article focused on the acoustic characteristics of Mandarin consonants-Voice Onset Time(VOT)as the research object.A total of 107 speakers(including the control group and the group of college students who are proficient in Mandarin without an accent)from four dialect regions were selected for Mandarin speech sample data.From a comparative analysis perspective,the relationship between VOT and pronunciation methods and pronunciation parts was analyzed,and the statistical analysis of the impact of speakers'native language experience and gender factors on the VOT of Mandarin consonants was developed.The experimental results showed that:(1)within the plosive group,the t and d at the tip of the tongue were the smallest in this group,the k and g at the base of the tongue were the largest,and the p and b at the lips were in the middle.That is to say,the VOT relationship among the three in each group was k>p>t,g>b>d;In the affricate consonant group,there was no significant difference in the internal pronunciation position of the same pronunciation method.(2)Under the same pronunciation position,the difference of VOT was the aspirated affricate consonant>the unaspirated affricate consonant,that is,p>b,t>d,k>g;c>z、q>j、ch>zh.Among them,the pronunciation method(especially whether it was aspirated or not)was the key influencing factor.(3)The mother tongue phonological experience showed significant differences in VOT within the plosive group(p,t,k,b,d,g)and within the africate consonant group(c,zh).(4)There was no significant difference in the VOT of the aspirated plosive group and the aspirated/unaspirated affricate consonant group,while the significant difference in the VOT of the unaspirated plosive group b was related to the native language background of the speaker.
voice onset timeplosivesaffricatesnative language phonetic experiencegender