SFX in lieu of speech concept?

Ryan Davis and the Giant Bomb crew mentioned this phenomenon on last weeks bombcast I believe.  
We've all played games that have sound effects instead of voice acting that accompany the jotting of words and punctuation in games. This is usually seen in older games such as Star Fox and Animal Crossing but it is still prevalent in new games such as Yakuza 3 and 3D Dot Game Heroes, It also often reflects the characters personality e.g. small girl has cute chirpy sound where as a large dullard might have a low monotone for him.
So I put the question to the moderators and the community, is this a worthy concept at Giant Bomb and more importantly what to call it?

Banjo-Kazooie is one of the greatest uses of this.

I hate that crap.
My girlfriend had an Animal Crossing obsession for a good long while,
And that shit drove me INSANE

It's still speech by definition so no.