"When you say the word "yanny" and "laurel", the waveform looks very similar for the first band of energy resonance".
One sound clip is reportedly tearing the internet apart based exclusively on fighting surrounding whether, when played, the listener hears "Laurel" or "Yanny".
Those who hear lower frequencies more clearly are probably going to hear "Laurel", while those who hear higher frequencies better will likely hear "Yanny".
Nina Kraus, a neurobiology professor at Northwestern University, says that "it is not at all surprising to me that two different people will take a sound that is admittedly acoustically ambiguous and hear it differently". Take our online poll and let us know: Yanny or Laurel?
However, they report that age isn't the only reason that the audio may be heard differently by different people.
The two words mesh well enough to be combined into one recording.
Audiologist Dr Bill Vass told ABC Canberra it could be like a high-pitched mosquito ringtone school students use, which can usually only be heard by people under 25 years old - making it inaudible to many teachers. That's letting them hear "Laurel" loud and clear.
She provides another example.