that, that creates acoustical energy that can be relied upon, it makes it so you can use it as a spectrogramake measurements to something else. my analysis, i start with zimmerman saying help me help me, i need your help from the re-enactment, and then i transcoded it up a third, fourth, sixth, which is about the same frequency as the screams, then added the screams, then i compared them all. >> you didn't have trayvon martin's voice, which is why you're not saying it was trayvon martin's voice, but in your opinion you don't believe it is george zimmerman's voice. >> that's right. that was misstated many times in my testimony by many people. >> the judge as you know ruled you won't be able to testify about this tape. she says your methods are new, they are novel, not widely accep accep accepted, no evidence to establish that scientific techniques have been tested and found liable. >> bio metric analysis is over ten years old, used by nsa, cia, department of defense, the entire country of mexico, and 30 or 40 other countries and states, just because she doesn't know about it, doesn't mean it