If you can't hear high freqs, you probably hear laurel. Kohan points out that Laurel is a bassier sound, and Yanny is more treble.

Check it out and be surprised by the possibilities of your brain! If you can hear high freqs, you probably hear "yanny", but you *might* hear "laurel". What word or name do you hear, and how far do you have to move the slider to hear another? What word do you hear in the audio -- “Yanny” or “Laurel?” The answer, as it turns out, is not so simple. Here's what it sounds like without high/low freqs.