https://blog.wongcw.com/2021/04/13/3000%e5%85%83%e6%aa%94%e6%a5%b5%e8%87%b4%e6%80%a7%e5%83%b9%e6%af%94%e4%b8%80%e5%8a%a09r%e5%ae%98%e6%96%b9%e5%8a%87%e9%80%8f%ef%bc%9a120hz%e6%9f%94%e6%80%a7%e7%9b%b4%e5%b1%8f/