Actually when I say something like "aldea" I pronounce it in a soft way. It also depends where people are from, I guess. I'm from south Spain, and we have a very "relaxed" way of speaking, a bit lazy, I would say. Friends of mine from central or north Spain would pronounce Aldea with a stronger D.
In words with D at the end, I don't even pronounce it: Madrid becomes Madri, cansado becomes "cansao" , but this is just my accent, or the accent from Andalusia. We never write this way, by the way; it's only spoken dialect.
I hope you enjoyed some southern Spain culture :). Buena suerte