¾Æ·¡ ¼³Á¤À» ¹Ù²Ù¾î °¡¸é¼ ½ÇÇà ¹öưÀ» ´·¯ º¸¼¼¿ä.
overlap:
0.0 0.25 0.5 0.75 1.0
duration:
0.25 0.5 1 2