This work includes a radio, a clock, and a microphone. The broadcasting program on the radio will be recorded and replayed in the next hour, at the mean time the radio keeps broadcasting the current program, and so on. During this process, each hour of the broadcasting from the radio will be mixed, but the further from the present, the content will be more blurry, and blended with the fluctuation and resonance in the space, just like the ripple. The clock ringing is the only constant sound happened in the same minute every hour. However, the clock sound will finally immerse into space and fade away with time. Inspired by the Alvin Lucier’s masterpiece "I Am Sitting In A Room”, combined with the concept of “domaine d’écoute” (Lin Chi-Wei, 2013), which indicates the sum of relations among the sound object, the listener, and the environment. I tried to extend the listening experience on the site by investigating the facts that the sound exactly exist in the space, transmit through space and fade with space.