User blog comment:Stevethebarbarian/Theoretical Question/@comment-24812000-20151209034128/@comment-24812000-20151210002128

Well I'm not an expert, it's just my opinion. I looked up the technical definition of sonic before replying to your post and it said "...to sound WAVES". That's kinda different that sound, I think. For instance, Klaw and Soundbird have very different powers than Black Bolt. They manipulate sound whereas Black Bolt just has a very loud voice, like Angar the Screamer (although he's made of sound so he's kinda different too). But that's just my opinion, I could be completely wrong here. I'm not a science expert, this is just what I think makes sense :p