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Graphic Equalizer Power Point

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Graphic Equalizer Power Point

  1. 1. GraphicEqualizer& SpectrumVisualizer David Hospedales Whilow Schock
  2. 2. Concept • Sound manipulation • Visual representation Resulting Project • Analog and digital forms of audio processing
  3. 3. Project Components • Graphic Equalizer • Digital Signal Processing • LED Display
  4. 4. Graphic Equalizer • Quality Factor of 1.414 • 10 pass bands • Each band is an octave apart
  5. 5. Digital Signal Processing • Audio sampling • Conversion from time to frequency domain • Communication protocol to LED display
  6. 6. LED Display • Continuous illumination • Designing around amperage • 74HC595 shift registers
  7. 7. Implementation Challenges • Circuit planning and layout difficulties • Incremental testing • Wire wrapping Hardware Software • Understanding and implementing FFTs • Attaining 10 updates per second
  8. 8. Layout and construction
  9. 9. Conclusion Cons • Destruction of stereo • Requires multiple power sources • PCB a better option Pros • Processes audio in analog and digital forms • All components work as designed • Excellent learning experience
  10. 10. ThankYou Thank you to all the instructors at NAIT for their support and knowledge. Any questions?

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