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ECE 3551 Microcomputer systems 1 DJ Mixer

ECE 3551 Microcomputer systems 1 DJ Mixer. Professor: Dr Kepuska Presented by Kermit Strachan. Introduction. The goal of this project was to create device similar to a DJ mixing board. Features: Controlling the input and output buffers Applying sound effects Cross fade between inputs.

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ECE 3551 Microcomputer systems 1 DJ Mixer

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  1. ECE 3551 Microcomputer systems 1DJ Mixer Professor: Dr Kepuska Presented by Kermit Strachan

  2. Introduction • The goal of this project was to create device similar to a DJ mixing board. • Features: • Controlling the input and output buffers • Applying sound effects • Cross fade between inputs

  3. Implementation • Starts in Off mode • Pressing PF8 • Once will activate Normal mode and turn on LED4. • Twice will activate DJ mode and LED4 will blink. • Thrice will activate Off Mode.

  4. Implementation • Normal Mode • Pressing PF9 • Once will switch all outputs to input0 and LED 5 is turned on to indicate that input0 is being heard. • Twice will switceall outputs to input1 and LED 6 is turned on to indicate that input1 is being heard. LED 5 is turned off. • Thrice will results in going back to both inputs being heard and LEDs 5 & 6 turning off.

  5. Implementation • Normal Mode • Pressing PF10 • Once will cycle the speakers in a clockwise order. LED 7 is turned on to indicate the clockwise cycle. • Twice will cycles the speaker sin the reverse order. LED 8 is turned on to indicate the anti-clockwise cycle. • Thrice will turns LEDs 7 & 8 off and stops the cycling of the speakers.

  6. Implementation • DJ Mode • Pressing PF9 • Once will activate a continuous auto cross-fade. LED 5 is turned on to indicate that input0 is being heard. LED 6 is turned on to indicate that input1 is being heard and when both LED 5 & 6 are on it indicates that both inputs are being heard. • Twice will deactivate the continuous auto cross-fade and turns off LEDs 5 & 6

  7. Implementation • DJ Mode • Pressing PF10 • Once will Both LEDs 7 & 8 on indicates the Flanger sound effect. • Twice will Both LEDs 7 & 8 off indicates the Echo sound effect. • Thrice will LED 7 on indicates a Low Pass Filter sound effect. • A Fourth time will LED 8 on indicates a High Pass Filter sound effect.

  8. Results and Conclusion • Flangereffect • Could use more “swooshing”. • Other effects cam out well. • Auto Cross-fade works really well. • Sound effects can applied while in that mode. • Speaker Cycling • A slower timer would make the cycling more obvious

  9. Results and Conclusion • Designing with only 4 buttons and 6 LEDs is difficult. • Had be careful designing the interface. • Limits how much functionality that can be implemented. • More effects could be added. • More LEDs would allow visual appeal with light movement.

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