Please listen to a little experiment of mine. I recorded myself singing "In My Life" by The Beatles, and mixed several recordings of my voice.
It gives this:
http://content.jam-in.com/youtube_fZh_tiybWJM/sessions/0/index.html
This is how I learnt that recording myself several times helps fixing my dissonant voice :-)
Hope the forum won't be angry at me if I advertize my project here.
You can download my Jam-in! app on Android, and record yourself over YouTube videos to generate web links like the one above. Here is the app:
https://play.google.com/store/apps/details?id=com.jamin
And you are also welcome to Like my Facebook app and get more news:
https://www.facebook.com/jaminapp