NOTE: Available activities have hot links indicated by the color blue or purple. Activities that will be available soon are indicated by the color black.
As you enter this discovery path you see a Giant Head that has a sprial staircase leading up to its left ear. The Head is transparent so you can see everything inside and is so big that you can walk through it and explore what's inside – the Six Basic Qualities of Sound Perception and the Auditory Pathway.
To the right is another path that leads to the Auditory Illusions, Localization – 3D Sound Adventures, and Why Does It Sound Good or Bad? activities.
To continue your visit check out the following online activities:
The study of sound perception is called psychoacoustics. Any time you hear a sound, there are some amazing things that happen. For every sound your ear-brain system processes, you get information about:
Can you imagine what it would be like to listen to TV or a movie with the sound turned off!? We use our ears and brains to process sound energy into a form that our mind interprets as sound, language, noise, or music.
Sound illusions are interesting not only because they are so cool, but because they help solve the mysteries of how the human mind works. Since everyone hears these lllusions differently, scientists have to work even harder to create coherent theories about how the ear-brain system works.
Did you know that your brain processes sound in 3D? That's right, a healthy brain is able to determine up/down, front/back, and left/right information about any sound. This process is called localization.
In the 19th and early 20th centuries, science made so many stunning discoveries that it seemed science would be able to, eventually, provide the answers to every question and working theories for every phenomena, including human perception. In the past fifteen years, we have learned more about how the brain works than in all of the previous centuries. There is, however, a lot that we don't know about how we perceive sound.
"When I hear music, I feel no danger,
– Henry David Thoreau
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