This sound effect can be found on The Odyssey Collection: Creatures Sound Effects Library, which was made by Pro Sound Effects. Both sounds are excerpts from Pro Sound Effects, Asian Elephant, Roar, Trumpeting, Squeaks and Grumbles, Short Bursts, Expressive Creature Vocalizations but with some effects applied. Links: https://download.prosoundeffects.com/track/25436575 https://soundeffects.fandom.com/wiki/Pro_Sound_Effects,_Elephant_Trumpet,_Deep_Screeching_Bursts,_Breathy_Growling,_Throaty,_Two_Versions#Audio_Samples