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Feedback: More than Loud Noise and Joysticks

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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Feedback: More than Loud Noise and Joysticks

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  1. Feedback: More than Loud Noise and Joysticks James Wnorowski

  2. What is Feedback? • When you put a microphone too close to a speaker? • Force Feedback Joysticks? • Something else entirely?

  3. Stability • Which pendulum is stable, and why? • Both placements are in equilibrium. • What happens if I push each mass a little to the side?

  4. 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

  5. Feedback, Revisited

  6. 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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