Ryoji Ikeda is a famous japanese sound and media artist. He crosses the boundary between visual media and audio media and creates mesmerizing performances. He focuses on very detailed sound like super sound and frequency using high digital technology. Developing his unique way, he gained world wide fame. In his work, sound, time and space are composed by mathematical way so that physical features of sound could reach to audience’s perception and feeling. Many of his work are consist of variable materials such as visual media, sound, installation object and new fabrications which lead his work to new area of art. I admire his work as he create new dimension to audience with very detailed sound and installation art. I always have interested in different perception to the world, his work gave me a glimpse of new world!