Listen to it on a Balanced pair on Monitor Speakers, and Betty White Girl Wasted shirt, you’ll hear it change through the range. I hear Laurel in two other vids and a Yanny in another. Maybe the slight difference in pitch of how people present the audio causes others to hear otherwise? And I think maybe the reason why one person hears it different than another, even if it’s in the same video and hears it different in another video is in the difference in how people hear sounds. Though I heard it’s literally both.