As this is my first article, it will be fairly short. So let's jump into it.
For those of you that have not had the luck to view the Avengers: Age of Ultron trailer, then this post just might give away some valuable information. After the whole shebang involving different Avengers attempting to lift Thor's enchanted hammer, Mjolnir, A very rough looking Ultron stumbles into the big room of the Avenger's Tower. When he does arrive he says "How could you be worthy? You're all puppets. Tangled in strings." After he (I guess he'd be a dude) says this BadA$$ line, An excruciating screeching sound emits from an unknown source, deafening the Avengers. Where did this sound come from? Well, I believe that the sound came from none other than The Master of Sound, Ulysses Klaw.
Why Klaw? Well, I have three things to support my theory. Firstly, Ultron frees Klaw from prison. Maybe that's the reason why Ultron was destroyed in what we can assume as the first conflict between our heroes and Ultron. In return, Klaw then helps Ultron escape from the tower. There's just one slight problem. Klaw has both of his hands. Somehow, he will lose his right hand (Black Panther, anyone) and seeks Ultron's help. Now in the comics, T'challa shatters his hand with a sound gun, which might be used in this scene. Second, the resemblance is uncanny with a capital X- Men. Lastly, who else uses sound as a weapon besides Black Canary (Oh wait, she's DC).