Monday, April 02, 2012

Common sense on the MSNBC 911 recording voice experts | Wizbang

Common sense on the MSNBC 911 recording voice experts

William Jacobsen:

It’s not George Zimmerman crying for help on 911 recording, 2 experts say, Orlando Sentinel. Actually, the biometric expert says it’s only a 40% match to Zimmerman, which raises the question why it would be that much if it’s not him, and the other expert does a non-technical voice analysis. But, if it’s true that it’s not Zimmerman, that raises serious questions. (added) The forensics on the bullet wound will be critical — and will tell whether it is consistent with Zimmerman firing while on his back on the ground or not, or firing from above down. If it is Trayvon crying for help, and the bullet wound indicates it was fired from someone standing over him, this case changes completely. That’s why it is so important to know much, much more before reaching conclusions.

Patience is needed as the investigation continues.

And of course, comments.

I am skeptical of these so called voice experts. Isn't it the presumption that an expert has actual experience and a track record of success?

The amazing program touted by one of the experts, Easy Voice Biometrics, was released to the public on March 1, 2012. It is one month old. How much experience does this program have, what kind of track record does a month old program have?

The other problem I have is that they are comparing George Zimmerman's relatively calm voice as he is speaking directly into a cell phone to the screams heard in the distance from a different phone, probably a land line.

There is no way that those are going to be comparable voice samples.

The second expert says he is certain that the voice is Trayvon Martin depite never having heard Trayvon Martin and also George Zimmerman's voice based only on the 911 recordings.

The Zimmerman defense team will be drooling to cross examine these guys.

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