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

ECE 3551 Microcomputer systems 1 DJ Mixer

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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. - PowerPoint PPT Presentation

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Page 1: ECE 3551  Microcomputer systems 1 DJ Mixer

ECE 3551 Microcomputer systems 1

DJ MixerProfessor: Dr Kepuska

Presented by Kermit Strachan

Page 2: ECE 3551  Microcomputer systems 1 DJ Mixer

IntroductionThe 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

Page 3: ECE 3551  Microcomputer systems 1 DJ Mixer

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.

Page 4: ECE 3551  Microcomputer systems 1 DJ Mixer

ImplementationNormal Mode

Pressing PF9Once will switch all outputs to input0 and LED 5 is turned on to

indicate that input0 is being heard.

Twice will switce all 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.

Page 5: ECE 3551  Microcomputer systems 1 DJ Mixer

ImplementationNormal Mode

Pressing PF10Once 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.

Page 6: ECE 3551  Microcomputer systems 1 DJ Mixer

ImplementationDJ Mode

Pressing PF9Once 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

Page 7: ECE 3551  Microcomputer systems 1 DJ Mixer

ImplementationDJ Mode

Pressing PF10Once 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.

Page 8: ECE 3551  Microcomputer systems 1 DJ Mixer

Results and ConclusionFlanger effect

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

Page 9: ECE 3551  Microcomputer systems 1 DJ Mixer

Results and ConclusionDesigning 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.