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It was Trayvon Martin crying for help on 911 tape

According to 2 forensic voice experts.



As the Trayvon Martin controversy splinters into a debate about self-defense, a central question remains: Who was heard crying for help on a 911 call in the moments before the teen was shot?



A leading expert in the field of forensic voice identification sought to answer that question by analyzing the recordings for the Orlando Sentinel.



His result: It was not George Zimmerman who called for help.



Tom Owen, forensic consultant for Owen Forensic Services LLC and chair emeritus for the American Board of Recorded Evidence, used voice identification software to rule out Zimmerman. Another expert contacted by the Sentinel, utilizing different techniques, came to the same conclusion.



Zimmerman claims self-defense in the shooting and told police he was the one screaming for help. But these experts say the evidence tells a different story.



'Scientific certainty'



On a rainy night in late February, a woman called 911 to report someone crying out for help in her gated Sanford community, Retreat at Twin Lakes.



Though several of her neighbors eventually called authorities, she phoned early enough for dispatchers to hear the panicked cries and the gunshot that took Trayvon Martin's life.



George Zimmerman, a Neighborhood Watch volunteer, shot Trayvon, an unarmed 17-year-old, during a one-on-one confrontation Feb. 26.



Before the shot, one of them can be heard screaming for help.



Owen, a court-qualified expert witness and former chief engineer for the New York Public Library's Rodgers and Hammerstein Archives of Recorded Sound, is an authority on biometric voice analysis — a computerized process comparing attributes of voices to determine whether they match.



After the Sentinel contacted Owen, he used software called Easy Voice Biometrics to compare Zimmerman's voice to the 911 call screams.



"I took all of the screams and put those together, and cut out everything else," Owen says.



The software compared that audio to Zimmerman's voice. It returned a 48 percent match. Owen said to reach a positive match with audio of this quality, he'd expect higher than 90 percent.



"As a result of that, you can say with reasonable scientific certainty that it's not Zimmerman," Owen says, stressing that he cannot confirm the voice as Trayvon's, because he didn't have a sample of the teen's voice to compare.



Forensic voice identification is not a new or novel concept; in fact, a recent U.S. Department of Justice committee report notes that federal interest in the technology "has a history of nearly 70 years."



In the post 9-11 world, Owen says, voice identification is "the main biometric tool" used to track international criminals, as well as terrorists.



"These people don't leave fingerprints, but they do still need to talk to one another," he says.



'The home run'



Though the term "biometric analysis" may sound futuristic, it basically just means using personal characteristics for identification. A fingerprint scanner is an example of a biometric device.



Much as the ridges of a human hand produce a fingerprint, each human voice has unique, distinguishable traits, Owen says. "They're all particular to the individual."



Another benefit of modern biometric analysis, Owen said, is it doesn't require an "in context" comparison. In other words, Owen didn't need a sample of Zimmerman screaming in order to compare his voice to the call.



The technology Owen used to analyze the Zimmerman tape has a wide range of applications, including national security and international policing, he said. A recently as January, Owen used the same technology to identify accused murderer Sheila Davalloo in a 911 call made almost a decade ago.



Owen testified that it was Davalloo, accused of stabbing another woman nine times in a condo in Shippan, Conn., who reported the killing to police from a pay phone in November 2002.



Davalloo was convicted, according to news reports.



Owen says the audio from Zimmerman's call is much better quality than the 911 call in the Davalloo case. Voice identification experts judge the quality based on a signal-to-noise ratio; in other words, comparing the usable audio in a clip to the environmental noises that make a match difficult.



And the call on which the screams are heard is better quality than is necessary, Owen says.



"In our world, that's the home run," he says.



Not all experts rely on biometrics. Ed Primeau, a Michigan-based audio engineer and forensics expert, is not a believer in the technology's use in courtroom settings.



He relies instead on audio enhancement and human analysis based on forensic experience. After listening closely to the 911 tape on which the screams are heard, Primeau also has a strong opinion.



"I believe that's Trayvon Martin in the background, without a doubt," Primeau says, stressing that the tone of the voice is a giveaway. "That's a young man screaming."



http://articles.orlandosentinel.com/2012-03-31/news/os-trayvon-martin-george-zimmerman-911-20120331_1_voice-identification-expert-reasonable-scientific-certainty


Added: Apr-1-2012 Occurred On: Apr-1-2012
By: Grace37
In:
Regional News
Tags: Zimmerman, Trayvon, tape
Location: Florida, United States (load item map)
Views: 7285 | Comments: 179 | Votes: 0 | Favorites: 1 | Shared: 0 | Updates: 0 | Times used in channels: 2
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  • So called expert witnesses are hired guns and their results are always tailored to whomever is paying the bills.

    Posted Apr-1-2012 By 

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  • Comment of user 'hedgehog' has been deleted by author (after account deletion)!
    • Comment of user 'crassmockery' has been deleted by author (after account deletion)!
    • Comment of user 'hedgehog' has been deleted by author (after account deletion)!
  • Anyone with a brain can hear it's a white guy screaming and not someone named Trayvon Muthafuckin Mortin.

    Posted Apr-1-2012 By 

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  • Never analyzed Martins voice, but! "I believe that's Trayvon Martin in the background, without a doubt,"

    MmmmHmmmmmmm.

    I'll wait for results from the real investigation.

    Posted Apr-1-2012 By 

    (7) | Report

  • All that scientific talk and the last sentence tells us what some guy "believes". Complete bullshit.

    Posted Apr-1-2012 By 

    (6) | Report

    • @nonad
      but what about the fact it was after 3 am when the voice was recoreded?

      oh
      sharpton said that's a moot point...

      Posted Apr-1-2012 By 

      (2) | Report

    • @Airedale
      I have no idea if this is true but I thought the time was 7:20 pm halftime of an NBA game when he went to the store.

      Posted Apr-1-2012 By 

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    • @RoccoSantoro
      I heard only one report of the time, 3 am, after that
      I never heard a time frame report anywhere again.
      The report could be wrong but I never heard mention of time in any other story.

      Posted Apr-1-2012 By 

      (1) | Report

  • Dont rob or assault people and you wont get shot, pretty simple.

    Posted Apr-1-2012 By 

    (5) | Report

    • @mrgod2u

      Zimmerman should get a medal or at least a weekend stay at Holiday Inn.

      Posted Apr-1-2012 By 

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    • @mrgod2u No God I know would make such white trash comments. Zimmerman stalked Trayvon and caused the incident. He is the exact type of personality that should never be allowed near a gun.

      Posted Apr-1-2012 By 

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    • @Richterscale

      Zimmerman was watching Trayvon knowing he did not belong in the nieghborhood. Tryvon started the altercation and then assaulted Zimmerman to the point of Zimmerman fearing for his life. Zimmerman then shot Trayvon dead.

      I have no problem at all with this killing and could care less what color the people are involved. This shooting is justified imo.

      Posted Apr-1-2012 By 

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    • Comment of user 'wargypzy' has been deleted by author (after account deletion)!
    • @Richterscale he stalked him at 3am?
      I would "stalk" some asshole i KNEW wasn't from my area, walking around at 3am. MUCH LESS inside a gated private community.

      Posted Apr-1-2012 By 

      (0) | Report

  • Unfortunately, there's a problem with what these experts, particularly Tom Owen, are claiming. I looked up the guidelines for reliable and accurate voice identification issued by the American Board of Recorded Evidence, the organization that Mr. Owen is a chair of. Guess what? The recordings that he used come nowhere close to meeting the minimum criteria. Specifically, the voice samples to be compared must have a minimum number of common words and phrases, must be recorded on identical or extrem More..

    Posted Apr-1-2012 By 

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  • And now that NBC is under investigation for altering the voice recording to say coon . We can flip to this bullshit , that has once again broken this case wide open .

    Posted Apr-1-2012 By 

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  • Oh!
    So I guess then that the eyewitness who saw and heard Zimmerman yelling for help is lying then?
    And Trayvon's dad who said it was not his son shouting for help (then changed his story)

    Har, har, har, har.......

    Posted Apr-1-2012 By 

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    • @sgtloverlips

      Hello Rumplestiltskin. Trayvon's dad didn't say that.

      Posted Apr-1-2012 By 

      (1) | Report

    • Comment of user 'crassmockery' has been deleted by author (after account deletion)!
    • @Grace37 Oh okay I must be lying again..

      http://news.yahoo.com/video/orlandowesh-16122564/sanford-police-speak-out-in-trayvon-martin-case-28640523.html

      Posted Apr-1-2012 By 

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    • @crassmockery No worries, here you go. I want the truth to, but so many people are jumping to conclusions and it is creating a deadly atmosphere.

      http://news.yahoo.com/video/orlandowesh-16122564/sanford-police-speak-out-in-trayvon-martin-case-28640523.html

      Posted Apr-1-2012 By 

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    • @sgtloverlips

      Thanks but not sure who said you were lying the first time. I never knew where that claim about his father saying it wasn't him had originated. Now I know. But apparently his father was wrong, or the media got it wrong, as I saw both parents interviewed on Anderson Cooper a week or 2 ago and the mother absolutley claimed it to be "her baby's voice".

      Posted Apr-1-2012 By 

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  • Comment of user 'POLICE' has been deleted by author (after account deletion)!
    • @POLICE - yeah so he is screaming HELP THIS HONKY GOT A GUN as he punches him in the face ? or was the situation clearly not as 'life-threatening' as zimmerman claimed ? the guy is 200lb and is at risk of death at the hands of a 150lb 17 year old ? he looks like a fit, healthy and uninjured man in the vid from the cop shop.

      the whole thing stinks to high heaven. he is going down.

      Posted Apr-1-2012 By 

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    • @assbastard0
      ?
      guilty....
      Say,
      isnt that what you said about the Duke lacrosse boys also ?

      Posted Apr-1-2012 By 

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    • @Airedale - uh, no. rape allegations are not the same thing, they are a whole different kettle of fish. and its important that it not be used as a weapon of false accusation ... ironically enough, the answer to false accusations of rape is the same to the answer to george zimmerman's actions: a hefty jail sentence to dissuade conduct like that from others.

      Posted Apr-1-2012 By 

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    • Comment of user 'POLICE' has been deleted by author (after account deletion)!
    • @POLICE - it doesnt make any sense that someone whose 'life was in danger' looks perfectly fine and uninjured.

      something doesnt add up, and its the threat to zimmerman's life, a 200lb 28 year old man, from an unarmed, 150lb teenager.

      doesnt. add. up.

      Posted Apr-1-2012 By 

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  • no_limit_nigga don't cry, biatch

    Posted Apr-1-2012 By 

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  • Bullshit, their conclusion was that it was a 48% chance the voice was Zimmerman's. They haven't done a test against Trayvon's voice because audion hasn't been presented to them.

    Posted Apr-1-2012 By 

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    • @GolemtheGnome

      The software compared that audio to Zimmerman's voice. It returned a 48 percent match. Owen said to reach a positive match with audio of this quality, he'd expect higher than 90 percent.

      Posted Apr-1-2012 By 

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    • @Grace37 So why not wait until they have audio of Trayvon before indicting Zimmerman. Maybe Trayvon would produce a similar result, the audio shoddy at best, a cell phone recording a man yelling 40 yards away can't be a good sample.

      Posted Apr-1-2012 By 

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  • good, i hope he was terrified and shitting himself before he was snuffed out...

    Posted Apr-1-2012 By 

    (4) | Report

  • And the Eyewitness says - - - ! ! !

    Posted Apr-1-2012 By 

    (3) | Report

  • justtice was served, dont like life, move, and get over it. I smell butthurt from people thinking they are god and can do whatever they want, yea til they meet another self proclaimed god.

    Posted Apr-1-2012 By 

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  • what about his father being a retired judge who got the shooter out of trouble in past on numerous occasions? thaat would explain the lack of due process.

    Posted Apr-1-2012 By 

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  • i call bullshit.

    Posted Apr-1-2012 By 

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  • They did not have a sample of Trayvons voice to compare !! I find that hard to believe, a sample should be esay enough to get hold of to compare.

    Posted Apr-1-2012 By 

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  • Well. After weighing all of the evidence, rumors, and MSM reports, I am now convinced.

    Posted Apr-1-2012 By 

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    • @porcubunny
      SAY !
      wait aminit
      Are these not the same 'experts" the libs slammed for saying the voice on the infamous bin Laden tapes was in fact, Osama ???
      hmmmm. now they are credble voice experts.

      jusayn..

      /sarc

      Posted Apr-1-2012 By 

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  • Zimmerman's history:

    Assaulted a cop, even though he wanted to be one. He had to take anger management classes as his punishment.

    Was fired from his job as an under-the-table security guard for “being too aggressive,” a former co-worker told the Daily News.

    Worked for two different agencies providing security to illegal house parties between 2001 and 2005, the former co-worker said. He snapped and broke a woman’s ankle by throwing her down on the ground.

    Zimmerman's ex fiancee had to More..

    Posted Apr-1-2012 By 

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    • @Grace37
      HuffPo...

      Well... there's an impartial source!

      Posted Apr-1-2012 By 

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    • @sprodge

      How's msnbc.com?

      http://usnews.msnbc.msn.com/_news/2012/03/27/10894561-zimmerman-accused-of-domestic-violence-fighting-with-a-police-officer

      Posted Apr-1-2012 By 

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    • @Grace37
      MSNBC...
      Hmmm... isn't that the same network that "ham-handedly" doctored the 911 call in order make Citizen Z (tabula rasa) appear unreasonably prejudiced?

      I can probably find a link if you'd like...

      Posted Apr-1-2012 By 

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    • @sprodge

      Like. I can't find anything on it and am pretty good at searching. Thanks.

      Posted Apr-1-2012 By 

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    • @Grace37
      Posted at 04:40 PM ET, 03/31/2012
      NBC to do ‘internal investigation’ on Zimmerman segment

      By Erik Wemple

      http://www.washingtonpost.com/blogs/erik-wemple/post/nbc-to-do-internal-investigation-on-zimmerman-segment/2012/03/31/gIQAc4HhnS_blog.html?hpid=z6

      Credibility isn't a 'mainstream' requirement, apparently.

      Posted Apr-1-2012 By 

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  • Yawn.

    Posted Apr-1-2012 By 

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  • libs gonna beat this dead horse til halloween ?

    Posted Apr-1-2012 By 

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  • So Jesse and Al hired some forensic voice experts?

    Posted Apr-1-2012 By 

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  • My defense would be that if indeed it was Trayvon (which they don't have a sample for, so it could be anyone) it was yelled at the point where he realised the gun was pointing at him while he was beating on Zimmerman. I'm saying that is what I would go with, not that it's a fact. It's a possibility yes, but who knows. I'd have to see results from Trayvon's voice at least to say yes or no.

    Posted Apr-1-2012 By 

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    • @marinemp00 - what would you do if you were beating on someone and a gun were produced ? LOL. you would stop beating on them i bet ? assuming the kid jumped zimmerman, if he had enough time to scream HELP he had enough time to stop being a threat.

      and come on, zimmerman just doesnt look like someone whose life would be threatened by a 150lb teenager.

      it doesnt make sense.

      Posted Apr-1-2012 By 

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    • @assbastard0 he was 190 and 17 at 15 he was 150. Easily tricked by the news and old pics/stats?

      Posted Apr-1-2012 By 

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  • Stop posting this shit you media-cock-sucking idiots.

    The media is controlling your mind.

    Are you guys too stupid to see this?

    Yes.

    Posted Apr-1-2012 By 

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