DOS7.1标准光盘装的DOS，想在DOS下播个MP3，但试了几个播放软件QV等，都提示找不到声卡，请都高手如何在DOS下实现播MP3的功能，自己上网没找到理想答案，是否要设置BLASTER环境变量，如何设置啊？
附本机：声卡: 瑞昱 ALC269 @ 英特尔 82801I(ICH9) 高保真音频
DOS7.1 standard CD-installed DOS, wants to play an MP3 under DOS, but tried several playback software like QV, etc., and all prompted that the sound card was not found. Please ask experts how to achieve the function of playing MP3 under DOS. I didn't find the ideal answer online. Do I need to set the BLASTER environment variable, and how to set it?
Attached to this computer: Sound card: Realtek ALC269 @ Intel 82801I (ICH9) High Definition Audio: P
