The Lion Roar is the Voice and Sound of Africa, Wayne Staab, PhD

The lion roar is the loudest of all the big cats with their roar reaching up to 114 dB SPL. Lions are active primarily at night, and most roaring occurs during nocturnal hours. Spectrographic analysis of lion roar reveals both low frequency components with a fundamental frequency around 180-194 Hz and a higher frequency component around 4000 Hz.

Andover, the magazine: Spring 2015 by Phillips Academy - Issuu

The Lion Roar is the Voice and Sound of Africa, Wayne Staab, PhD

Wayne's World Archives Hearing Health & Technology Matters

Eighty-five by Estelle Sertich - Issuu

1981-1982 NWC The Black and Red Vol. 85 by Martin Luther College - Issuu

Wayne's World Archives Hearing Health & Technology Matters

Everett Daily Herald, September 09, 2015 by Sound Publishing - Issuu

Floridast2017 by Mexico Sports Collectibles - Issuu

MICHIGAN TECHNOLOGICAL UNIVERSITY - PDF Free Download

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Guinness World Records

Drum Corps International 2016 Yearbook - Drum Corps International - Page 1 - 148, Flip PDF Online