The latest question to cause office debates and split the Internet is (drumroll please): laurel or yanny?
In response to her text, Novak said, "Obviously Laurel ... who hears Yanny?".
The higher frequency is the Yanny and the lower frequency is the Laurel. "The interesting thing about the word Yanny is that the second frequency that our vocal track produces follows nearly the same path, in terms of what it looks like spectrographically, as Laurel".
Some have said the speakers used have something to do what an individual hears. What about laurel and yanny?
If you mess with the frequencies in a recording, you can change what people hear - it's similar to the way that our eyes can be tricked by an optical illusion.
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.More news: Lavrov calls situation on Iran deal a 'crisis'
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But he said it was also more hard to determine the word in this particular recording because it is "not real speech". Szabo, 18, played the recorded vocabulary.com clip through his computer speakers for a school project, the New York Times reports.
"I'd like to declare something that is just so obvious, it is Laurel and not Yanny", he said.
More than one person online yearned for that simpler time in 2015, when no one could decide whether the mother of the bride wore white and gold or blue and black.
Patricia Keating, a linguistics professor and the director of the phonetics lab at UCLA, said: "It depends on what part (what frequency range) of the signal you attend to".
People hear different words because the audio file has more than the usual number of frequencies. And your brain can really probably only hear one.