Can not play .wav file on Win32

• cocos2d-x version: 4.0
• devices test on: Win32 , android
• developing environments
  • NDK version: r 20
  • Xcode version: not use it
  • VS version: VS 2015
  • browser type and version:

Steps to Reproduce:

1. On Win32：I call the function -------- AudioEngine::play2d("audio/1.wav"); It‘s not worked！ but when convert the wav to mp3 by using other application， then call AudioEngine::play2d("audio/1.mp3"); It’s worked !
2. by the way, on the my android devices , the wav file this worked,too.