Investigating comparison of Chinese and Persian consonant sounds

In learning second language, the amount of similarity or difference between two language`s phonetic system, has an important effect on student`s learning. It is clear whatever the amount of similarity is more, learning for students will be easier and more difference will increase learning difficulties. This study, not only explains about consonant sound and phoneme system, but also checks the difference between Chinese and Persian consonant sounds from the perspective of place and manner of articulation, voiced and voiceless, aspirated and unaspirated. Meanwhile, an oral test is done to show the effect of difference between Chinese and Persian consonant sounds for learning Chinese consonant sounds by Iranian students which 45 students of ShahidBeheshti University participated in, they read all Chinese consonant sound, and then with checking recorded file, the number of students who pronounce correct or incorrect would be clear.  The result from oral test is a supplement for topics which is mentioned in theoretical foundation research study which shows that 10 Chinese consonant sounds have been pronounced correctly by the learners and 11 Chinese consonant sounds which are different with Persian consonant sounds pronounced incorrectly by the learners. Based on the result, with increasing the amount of difference between these two languages, the number of students who pronounce correct decreased. Also these results will prove that the hypothesis of this paper is correctly verified.