Study 7 is my second creation based on the work of my study1. When I saw my first work again, the whole work had only one live broadcast of the mosaic. And then, I tried to use this element in my study 7, I thought that the TV was usually used for live shows, so in this work, I added an image of the TV to the background. There are four TVs in this picture placed in different positions. My idea is to play live broadcasts on every TV, but each image has a different place. Moreover, I split the entire live show into four parts, so the things that are played on the 4 TVs will be different. This will look interesting than every tv play the same image. At the same time, I keep the mosaic, and the mosaic in the live broadcast could bring a mysterious feeling to viewers. The player could control the position and size of the live view by changing the parameters of the data. I provided a simple data for reference (this data is in study 7 in my blog, it is a picture). Besides, there is a place in my study7 that makes me feel disappointed. I successfully created a live broadcast, but there is no way to put the voice of the viewer into it at the same time. The final result is that I found a piece of music to replace the sound of people.