Microsoft Yahei Case Introduction: Microsoft Yahei Colorful Land is located in the northwest of Yanling Famous Flowers and Flowers Park in Henan Province, with the core area of 10,000 acres of flowers and Changge in the west. It is the first project in Yanling County and has a strong demonstration. The project is planned monthly, with a total investment of 100 million yuan and a total area of acres. It will be constructed in two phases. The first phase covers an area of acres and begins construction in March. The Colorful Earth Sightseeing and Leisure Tourism Zone is a special tourism project with pastoral flower sea sightseeing, wedding etiquette base, sketching film and television shooting, and flower farming culture display as its core content. It is also a comprehensive tourism project integrating leisure, sightseeing, entertainment, health vacations, and special catering. Microsoft Yahei Colorful Earth Theater Sound Reinforcement System is fully built by audio. The slightly all use a series of theater slightly. In this sound reinforcement system, a two-inch built-in two-frequency theater main slightly () is configured as the left, center and right channel speaker, a one-inch theater sub-low speaker () is selected as the theater surround channel speaker, and at the same time, a one-inch theater sub-low speaker () is selected to play the bass channel signal in the movie. This series of slightly is a high-level fixed-installed professional theater sound reinforcement system specially tailored for theaters and auditoriums. The series provides wide coverage angles and smooth high-frequency response. Through collocation and use, a professional sound reproduction system is built to lead the audience to enter the movie plot immersively. The professionally designed box provides scalable low-frequency response, and the crossover point adjustment allows it to provide wider coverage across the overall frequency range; the high-output driver and horn allow sound to be clearly transmitted to each seat. The series ensures a pure, natural, crystal-clear and transparent sound at long-term maximum sound pressure levels throughout mid-to-high frequencies. During the trial operation and official opening of Microsoft Yahei Yanling Colorful Land Theater, its screening and sound effects were well received by users and fans.