PPT-Chapter 10 : Perception of sound

If a tree falls in the woods and there is no one around does it make a sound 3 requirements for sound 1 Vibrating body something to create mobile pressure changes Vibrating bodies Vibrating bodies . ‘The greatest calamity that can befall people is not that they should be born blind, but rather that they should have eyes and yet fail to see.’. ` Helen Keller, 1880-1968 . Helen Adams Keller. Speech is for rapid communication. Speech is composed of units of sound called . phonemes. examples of phonemes: /ba/ in bat , /pa/ in pat. Speech. Seeing Sound with Spectrograms. A spectrogram is a 3D plot of sound. Speech & music. Erik Chevrier. November 3rd, . 2015. Revised Course Schedule. November . 3. rd. . Perceiving Speech and Music. . . Chapter . 11 . . November 10. th. . Light and the Eyes . Fatmah . Sakran. 200901078. Definitions . Sensation:. The detection of physical energy emitted or reflected by physical objects. Occurs when energy in the external environment or the body stimulates receptors in the sense organs.. Event Perception. : an event is defined as a change in both time and space. . Thus . far we have discussed how our visual system processes very simple static qualities of the environment such as color, distance, pattern, etc. But, the visual system was not designed just to encode and understand these static events, instead, and even more impressively, our visual system was designed to encode and understand the meaning of "events", changes that are dynamic, that visually unfold over time and space. Audiogram or Audibility Function (AF) . for normal human young adult. Note: peak sensitivity 2-5K frequency range.. . Audiogram or AF. : . a graph indicating the threshold intensity of varying frequencies. A normal audiogram show declining threshold intensity from 20hz to about 2,500hz (where it usually bottoms out). Then a steady increase from about 5,000 to 10,000; with a very steep increase from 10,000 on. SECTION 1: SENSATION. WHAT IS SENSATION?. Def. : what occurs when a stimulus activates a receptor. Stimulus. : an aspect of or change in the environment to which an organism responds. SENSATION CONTINUED. We . associate pitch (the high or low quality of a sound) with . frequency. . Pitch . can vary due to factors other than frequency, such as the intensity or context of a stimulus.. Most frequencies are systematically encoded by the auditory system through . Roberto Bresin. DT2350 Human Perception for Information Technology. Copyright (c) . 2015 Roberto . Bresin. This work is licensed under the Creative Commons Attribution-. Noncommercial. -Share Alike 3.0 . Introduction. Sensation. The . process by which our sensory receptors and nervous system receive and represent stimulus energies from our . environment. Perception. The process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and . Depth Perception: The . Visual Cliff . Experiment. Depth perception . – . the ability to see objects in three dimensions, although the images that strike the retina are two-dimensional - enables . us to judge distances. . Bouba. -Kiki Effect. . Karlee. Jones, B.S. Ed. & Matthew Carter, . Ph.D.. Valdosta State University. Disclosures. None of the authors had any financial relationships relevant to the content of this presentation. 6-8%. Module 16. Basic Concepts of Sensation and Perception. Learning Targets. 16-1. Describe . sensation. and . perception. , and explain the difference between . bottom-up processing and top-down processing. 20. th. Feb 2019. Review: the . visual pathway. Pathway begins at the physical apparatus of the eye. Works its way through connecting nerves. Lateral geniculate nucleus (LGN) is an important junction .