HTML5 video OK but Audio doesn't work (IE9) [closed]

HTML5 video OK but Audio doesn't work (IE9) [closed]

References

Reference NO 1

http://ottopress.com/2011/howto-html5-video-that-works-almost-everywhere/

Reference NO 2

http://www.htmlgoodies.com/html5/how-to-embed-video-using-html5.html

Reference NO 3

http://stackoverflow.com/questions/13730796/audio-tag-doesnt-work-in-ie9

Reference NO 4

http://msdn.microsoft.com/en-us/magazine/hh781023.aspx

Reference NO 5

http://wordpress.org/support/topic/plugin-mediaelementjs-html5-video-audio-player-not-working-in-ie

Reference NO 6

http://html5doctor.com/multimedia-troubleshooting/

Reference NO 7

http://diveintohtml5.info/video.html

Reference NO 8

http://help.videojs.com/discussions/problems/1339-can-get-to-work-in-everything-but-ie9