Wow such hostility, I actually think this is a brilliant idea and one well worth implementing, of course you would have to include an alternate way to perform dragon shouts for the xenophobes and those without a mic but this would have to be one of the best and most original ideas I have seen on these forums.
Does anyone know how the shouts will be controlled normally? I mean if it is somewhat like magic was in Oblivion making the shouts voice activated would free up the magic slot and you would have control of all the shouts at the tip of your tounge instead of having to equip a new one every time you wanted to use a different shout.
Exactly my thoughts, having to go into a menu to choose between 20 shouts, when you can simply implement a system ( that is already developed in a bunch of games ) to prevent breaking the game flow. Of course it would have to be optional, but one thing I noticed is that people don't like change.
When change is actually good sometimes.
Niker