Re:A Linguist Explains Why 'Laurel' Sounds Like 'Yanny'
by jpindar on Thursday May 17, 2018 @11:44AM
(#17092305)
MyNoise.net also has that, along with some other interesting audio effects.
https://mynoise.net/NoiseMachines/shepardAudioIllusionToneGe...
https://en.wikipedia.org/wiki/Shepard_tone