The Railway Campus of Central South University (formerly Changsha Railway College) is a sub-campus of Central South University. The campus has national key disciplines in first-level disciplines of civil engineering and transportation engineering. It is one of the first batch of colleges in the country to obtain the right to award doctoral and master's degrees, with more than 10,000 students. In recent years, more than 10,000 graduates of various types have been trained. The campus covers an area of more than acres and a building area of more than 10,000 square meters. This project uses a Snick sound system and uses a linear sound column as the main sound reinforcement slightly. It has the characteristics of high power, small box, high sensitivity, etc. The high-fidelity sound system has clean, clear sound and even coverage, fully meeting the diversified use needs of various lectures, cultural performances, etc.