The Acoustic Perception Of The Apical Vowels (?)-(?) In Mandarin

The basic vowels in Mandarin have their own space,different vowels have different tongue positions and lips.In order to further explore the acoustic pattern distribution,we hypothesize the acoustic properties on perception of these basic vowels and the articulation of them should be consistent.These basic vowels in acoustic perception should also have their own space.Thus, we can identify different sounds when hearing them.To explore the acoustic properties on perception of apical vowels 1(?)/-1(?)/ in Mandarin,I start two experiments.Due to the two apical vowels don’t have zero initial syllables,I have to cut down constant to get a zero initial syllables using the professional software after I record monosyllabic which exist in the natural words.Paste respectively the initial constant and the synthesized vowels which I modify constantly the second and the third formant after getting them.Subjects will make the identification and discrimination.We hope to find out the categorical boundary, zi/zhi is the material in the first experiment and I add the comparison group of ci/chi and si/shi in the second experiment.Maintain the former approach,go on a further exploration. By contrast with two experiments,we aim at solving the following problems:Firstly,verifying the categorical perception of two apical vowels and try to find out their own dynamic space.Secondly,verifying the dependency relation of the apical constants and vowels by exploring the results of two experiments.Thirdly,discussing whether the cacuminal constant who has much stronger markedness cause a bigger space of vowel or not.At last,discussing if the different types of constants will influence the vowels and if this influence is regular.