五洲震荡，洪水滔滔

飘泊

Background sounds of yelling for help in 9-1-1 calls

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In recordings of the 9-1-1 calls, yells for help are audible in the background. Zimmerman's family says it was Zimmerman yelling for help, Martin's family says it was Martin yelling for help, and independent audio analysts offer differing opinions as to who was yelling for help.

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In an interview with prosecutors on March 19, Zimmerman's father identified the yells as George Zimmerman's, stating, "There is no doubt who is yelling for help. It is absolutely my son." Other relatives of Zimmerman, including his brother, concur and are equally adamant.[219] During a bond hearing on June 29, the 9-1-1 recording was played in court, and Zimmerman's father testified that "it was definitely George's" voice heard yelling for help in the recorded 9-1-1 call.[220]

飘泊

Z的家人很肯定地说是Z在呼救

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According to police reports, after listening to audio recordings of the 9-1-1 calls, Martin's father, Tracy Martin, told police investigators that it was not Trayvon Martin's voice yelling for help.[197] Martin has since told reporters he was uncertain at that time, but that when he heard an enhanced recording on March 16 he was convinced it was his son yelling for help. Investigators interviewed Martin's mother, Sybrina Fulton, who reviewed the 9-1-1 calls to police and identified the voice crying for help as her son.[215] Investigators also interviewed Martin's cousin who stated that without a doubt "on a stack of bibles" it was Martin yelling for help on the 9-1-1 tape.[221][222]

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M的爹前面说这不是M在呼救的声音，但后来又说是的。M的妈和表/堂兄/弟认为是M的声音。

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During the FBI investigation, Witness 45, a neighbor of Zimmerman's, stated he was 110% sure the voice calling for help was Zimmerman's.[223][224]

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Z的邻居说110%是Z的声音

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Independent audio experts vary in their interpretations of the low-quality audio of the phone recordings, which one expert compared to analyzing low-resolution video from a security camera.[225] The FBI was not able to determine whether it was Zimmerman or Martin who could be heard yelling out for help in 9-1-1 calls, citing both poor audio quality and "the extreme emotional state of the person screaming."[197][226] Two expert audio technicians, listed as possible witnesses for the prosecution, analyzed the emergency calls made during the altercation. One analyst reported that he believed some of the cries came from Martin. The other analyst said the quality of the recordings was insufficient for good analysis, but said some cries were likely from Martin and some likely from Zimmerman[227]

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技术人员无法通过声音处理来判别究竟是谁的呼救。这究竟是谁呼救了，对案子的审理有极大意义。如果是Z呼救了，那么Z就是正当防卫了。