graphic equalizer power point
TRANSCRIPT
Graphic Equalizer & Spectrum VisualizerDavid Hospedales
Whilow Schock
Concept• Sound manipulation• Visual representation
Resulting Project• Analog and digital forms of audio processing
Project Components• Graphic Equalizer• Digital Signal Processing• LED Display
Graphic Equalizer
• Quality Factor of 1.414• 10 pass bands• Each band is an octave
apart
Digital Signal Processing• Audio sampling• Conversion from time to frequency domain• Communication protocol to LED display
LED Display• Continuous illumination• Designing around amperage• 74HC595 shift registers
Implementation Challenges
• Circuit planning and layout difficulties• Incremental testing• Wire wrapping
Hardware
Software• Understanding and implementing FFTs• Attaining 10 updates per second
Layout and construction
ConclusionCons• 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
Thank YouThank you to all the instructors at NAIT for their support and knowledge.
Any questions?