This document discusses sound and touch as it relates to web design. It covers topics such as the human ability to hear different pitches, intensities and tone colors of sound. Human hearing ranges from 16-20 Hz to 16 KHz and is most sensitive in the center. Touch is discussed, including the different nerve endings and our ability to feel pressure, warmth and cold. The document presents information on haptics and how touch can be used for nonverbal communication. It concludes with information about the presenter, Roberto Dadda.

1. Mater of Arts in Communication Design
WEB DESIGN
Hearing & Touch

2. Headings & touch
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3. Hearing
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4. Headings & touch
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5. Sound
• Pitch
• Pitch is a perceptual property that allows the ordering of sounds on a frequency-related scale
• Intensity
• Sound intensity or acoustic intensity (I) is defined as the sound power Pac per unit area A.
• Tone color
• is the quality of a musical note or sound or tone that distinguishes different types of sound
production
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6. Sound is energy
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7. Human hearing
• From 16-20 Hz to 16 KHz
• More sensibile in the center
• Feels frequency differences of 1.5 Hz (less at hight frequences)
• Feels position of source (stereo)
• Feels familiar sounds modifications (cold effect)
• Uses filters (cocktail party effect)
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8. Treshold of pain
Sound pressure dB
Audible area
Music
Talked
Audibility treshold
Frequency Hz
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9. Rock concert
Treshold of pain
Firearm
Mower
Sound pressure dB
Audible area
Music
Talked
Conversation
Watch tic-tac
Audibility treshold
Frequency Hz
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10. http://www.youtube.com/watch?v=jTUgh3HJgQU
http://www.youtube.com/watch?v=GDcCGVceEt8
An earcon is a brief, distinctive sound
used to represent a specific event or
convey other information.
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11. Headings & touch
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12. Headings & touch
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13. A good website asks before speaking
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14. Touch
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15. Touch
Nervs endings types
Dolor
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Pressure
Warm
Cold
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16. Maria Tecla Artemesia Montessori
(August 31, 1870 – May 6, 1952)
With touch we feeel very complex
informations like wet/dry, velvety/rough…
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17. Headings & touch
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18. Motor
homunculus
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19. Senses
homunculus
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20. Haptics is any form of nonverbal
communication involving touch
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21. Logitech iFeel
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22. Headings & touch
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23. Roberto Dadda
www.dadda.it
roberto@dadda.it
+39 338 775 22 03
Twitter, facebook, linkedin: robertodadda
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