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World records and extremes of vocal range. 1  The highest vocal range in the world, according to the Guinness Book of World Records, is that of Georgia Brown; a Brazilian female singer who produces unusually high pitches using a whistle register. Her range extends eight octaves, from G2 to G10.
Answer Wiki. There are two ways you can get a wide vocal range. One way is going higher than the norm and another way is going very low. Going lower than what the human ear can hear is Tim storms with his 10 octaves of sound. His lowest recorded note is G-7.