Day Six of the Trayvon Marton | George Zimmerman Trial

Voice Expert - Dr. Nakasoni Who was screaming?

The upshot with this voice recognition expert is that science cannot identify the screaming voice. Recall that the dueling experts have been excluded. DA is using this witness for the proposition that a human familiar with the person will know the voice better than science but the expert points out that there's human bias. He also points out that you have to be familiar with the known voice when it's screaming. Emotional state if a huge factor in analysis. Screaming is an "unnatural voice." Forensics needs thirty seconds of the voice to remove unnatural voicings and noise to analyze. Cell phones distort voices. Land lines are more usable. Distance from the recording devise to voice is "dangerous" to analyze. "Far-field voice." The "far-field" voice gets "smeary" because of acoustics and atmosphere and in this case, other voices on the phone recordings. Humans hear a known voice better than any test because of the memory of the voice. **Apparently Martin's family will want to ID the screaming voice as Martin's and this expert will be used to argue that they know better than experts.

FYI - English has 44 phonics. The word Help has three phonics. Help repeated over and over still is only three phonics, no phonetic balance. In the 30 seconds you need for forensic analysis, you need the phonetic patterns/balance. In this case, the resonance of the screaming in extreme distress and fear cannot be ID'd by comparing it with an "enacted" scream. It's not the pitch of the voice, it's the tube it comes through that creates resonance. Emotion creates changes in resonance. The screaming on the 911 recordings went in and out and lasted 45 seconds until the gunshot. There were only 3 seconds of isolated screaming to work with. The rest was "stepped on" by other voices on the 911 call.

Final Opinion... No comparison possible due to distance and other voices. Cannot ascertain age in this case. No expert will make a guess or estimation of age in this instance. Easier for a person who knows the voice to ID the voice. ** (I assume that means the DA is setting up reliability of someone who knows Martin to ID screaming voice as Martin's voice.)

Witness Officer Doris Singleton TOOK ZIMMERMAN'S INITIAL STATEMENTS

Responded to shooting call. Met Z in the interview room of the police station and recorded her interview with him. Not video'd. Mirandized. Not under any drug or alcohol influence. Injuries evident with crusted blood at the nose and "active bleeding" on back of head. They play the recording for the jury:

Z stated to he that there had recently been "a lot" of crimes in neighborhood. Started Neighborhood Watch. Tryvon Martin was suspicious to Zimmerman because Martin was walking casually around in the rain "looking at the houses." Z had never seen him before and he is acquainted with many of the folks in his neighborhood. Zimmerman was on his way to the grocery store in his car when he noticed Martin. They passed each other in opposite directions. Z pulled over to the curb to call non-emergency police number, as he had been instructed to do in Neighborhood Watch training. As he was waiting to connect to the cops, Martin "dipped between buildings." Martin re-appears out of the dark and Z sees Martin "circling my car" and Martin actually looked into the car and then disappeared back into the dark. The call connected and the Dispatcher asked "Where is he?" Thereupon, Zimmerman got out of his car to seek a street sign to give dispatch a location for the cops to come to. He couldn't see addresses in the dark. He walked from his car to the sidewalk known as the "dogwalk" at the point called the "T" where sidewalks intersect. TM jumped out of the bushes, and said "What the fuck is your problem? While Z answered that he had no problem, he tried to reach his phone to call 911. Z: "I don't have a problem." M: "Now you do" and Martin punches Zimmerman in the face. Z didn't see the punch coming in the dark.. He fell back onto the grass and Martin straddled him. Martin was "wailing on" Z and as Z screamed for help. M then hit Z's head on the sidewalk. Z could see people looking out of windows and he screamed for them to come and help him. TM put his hand over Z"s nose and mouth. "You're going to die tonight, M/F." No one helped. While Z tried to "slide out from under" Martin, he felt TM's hand go toward Z's weapon which was visible holstered on his belt. Zimmerman reached his gun first, and shot. TM says "You got me, you got me." Z holstered weapon, got on top of TM who was still talking and said "Stay down, don't move. Police are on the way." Z asks witnesses out on their porches and in their windows by now, to "Come help me" and cop shows up. Cops ask "Who shot this guy?" " I did" and showed weapon and then he's cuffed. TM described as 6', slender build. "He was taller than me."