https://blog.faceutil.com/2017/03/27/goldwave-v6-22-%ea%b3%a8%eb%93%9c%ec%9b%a8%ec%9d%b4%eb%b8%8c-%ec%98%a4%eb%94%94%ec%98%a4%ed%8e%b8%ec%a7%91-%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%a8-%e3%89%b7/