In the great internet debate between did you hear Yanny or Laurel, there's only one clear answer. "If you [remove] all the high frequencies and you just get the low frequencies, you hear Laurel," he said. Older adults don't hear high frequencies as well as younger people which is why they are able to pick up Laurel and not Yanny. A demonstration of that audio pitch-shifting magic from audio technician J.S. Villeneuve shows how shifting the pitch and frequency of a piece of audio can turn 'Laurel' into 'Yanny.'

Source: CBC News May 16, 2018 22:30 UTC