[FFmpeg-user] How to record video and audio from webcam and microphone

[Kale Yang]

Hi Guys, 
I am new in ffmpeg. But, getting a project to use ffmpeg to capture MP4 video AAC audio from external webcam and microphone. 
I downloaded win32 built version and used command lines to testing result:
The video format is correct but there is no sound track in output file.
Some people said on Windows, audio part can NOT be captured by ffmpeg. Is that correct? Or do you know any other solution to record MP4/AAC from external devices? 
Many thanks