Curious about effect on this video (Singing)

[forumtom]

What effects are used over these videos to give them that sort of altered effect?

watch?v=7jWW-U2GMoc

watch?v=B5k7DEBjzi8

watch?v=ne4ba7yYWNY

(Didn't let me post links just paste that onto the youtube URL, apologies)
Thank you.

 

[Cameron Dubs]

Glass emboss effect?

They have different sort of names depending on the software you use.

 

[forumtom]

Glass emboss effect?

They have different sort of names depending on the software you use.

I have either Sony Vegas or I will be using Garageband.