feedback more than loud noise and joysticks
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Feedback: More than Loud Noise and Joysticks. James Wnorowski. What is Feedback?. When you put a microphone too close to a speaker? Force Feedback Joysticks? Something else entirely?. Stability. Which pendulum is stable, and why? Both placements are in equilibrium.

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Presentation Transcript
what is feedback
What is Feedback?
  • When you put a microphone too close to a speaker?
  • Force Feedback Joysticks?
  • Something else entirely?
stability
Stability
  • Which pendulum is stable, and why?
  • Both placements are in equilibrium.
  • What happens if I push each mass a little to the side?
slide4
Demo
  • The first time, I just let the flashlight fall
  • The second time, I moved my hand so that it was under the flashlight, preventing it from falling
  • This is an example of Negative Feedback
review
Review
  • To make systems stable, we use Negative Feedback.
  • Joystick an example of Negative Feedback.
  • Speaker / Microphone combination an example of Positive Feedback.
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