![]() ![]() ![]() After around five or six repetitions, the brain begins to interpret it in a musical way – something that audiologists still can’t really explain. Apparently, it needs to be a phrase that has been taken from a longer sentence, and then immediately repeated. In this case, the brain seems to turn ordinary speech into a form of song if a phrase is repeated often enough. Another fascinating illusion is the “Speech to Song” effect. What results shouldn’t make sense, but in experiments, people have heard “phantom” words emerging as their brains struggle to understand what they are hearing. Deutsch rigged up a pair of stereo speakers and played a two-word phrase through them, with one offset so that the first word is overlaid constantly by the second. For example, Diana Deutsch also looked into what is known as “pareidolia” – the perception of words or images which make sense from a chaotic, disorganized backdrop. There are plenty of other remarkable auditory illusions beside the Tritone Paradox, the McGurk Effect and the Shepard Tone, and more are being discovered all the time. However, according to Deutsch, the language you speak and the culture you grew up in plays a major role.īelow you can see an example of the Tritone Paradox: Why is this? It’s still not exactly clear. But here’s the interesting part: when you listen to them as a group, you’ll probably come up with different interpretations of which note was high, and which was low. According to British musicologist Diana Deutsch, these two tones can either be heard as ascending or descending notes. For example, a single sudden loud clap sound can make sounds inaudible that. As you might have guessed, they are a pair of Shepard Tones, and have the same magical properties as their ascending compatriots. Masking can also happen to a signal before a masker starts or after a masker stops. But with the Triton Paradox, you’ll hear a pair of notes played directly after each other, with a small gap in between called a “tritone.”īut these aren’t ordinary notes. In the normal Shepard Tone, a scale ascends seemingly forever. ![]() The Tritone Paradox is one of the most well-known variants of the Shepard Illusion, and it’s an auditory illusion that works best when you try it out on friends. Musical Illusions: Applying the Psychology of Auditory Perception to Modern Composition. The Tritone Paradox: Everyone hears something a little bit different ![]()
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