They take make a guess at what her voice sounds like based on features of her body. Said to be 90% accurate

Article
The chart of any individual's voice, known as a voice print, is unique to that person and Suzuki says he believes he has achieved 90 percent accuracy in recreating the quality of the enigmatic woman's speaking tone.

Sound Clip - Just click the play button
http://promotion.msn.co.jp/davinci/voice.htm

She says "I am the Mona Lisa. My true identity is shrouded in mystery,"

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"My dreams are all dead & buried. Sometimes I wish the sun would just explode. When God comes and calls me to his kingdom, I'll take all you sonsabitches when I go"

thats instanly creep AND interesting lol.

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COBRA KAI DOJO NEVER DIES
RIP Shiloh