- ffmpeg: [Official site][1], [Download][2]
- Download ffmpeg from [link][2]
- Extract the ffmpeg.exe from zip package and copy to the directory contain the audio file
- Copy the volumeDetect.bat into the folder. (Just make sure the bat file and ffmpeg.exe are in the same directory)
- Doulbe click volumeDetect.bat and drag the file into the window.
- Press enter and get the result.