smart guitar - uc santa barbara · smart guitar alex paige larry zhao henry tang jeff hanna. 3 -...
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Smart Guitar
Alex PaigeLarry ZhaoHenry TangJeff Hanna
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- Tuning
- Live Streaming Mode
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Analog-Digital Conversion
001011010
Fourier Transform◦ Input: digital sound data◦ Output: top contributing frequencies
Overtone Prediction◦ Knowledge of overtones is used to confirm fundamental
frequency Post Processing◦ Stable-sequence detector marks start and end of a note◦ Frequencies are adjusted to the nearest possible notes
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UART for RS232
Mode Operation
FFT Algorithm
SPI for ADCMemory Interfacing
Look-Up Tables
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Weak signal from Roland device ◦ Added Op Amp to boost signal
Incorrect configuration for Voltage Regulator◦ Flipped the device upside down
Signal Noise ◦ Set a threshold range for frequencies
SDRAM Connection ◦ Software workaround
Used upper 8 bits
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Alex Paige ◦ Team Leader/Hardware/Music
Zhiyuan Tang◦ Software Interfacing/Processor
Jeff Hanna ◦ FFT/Music
Larry Zhao ◦ CAD/Hardware
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Better FFT algorithm that can handle overtones
Wireless Updated Roland device A data save mode Integrate with other stringed instruments Signal Isolation
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Start early!!!! Be creative in your project selection Quadruple check your hardware Read every data sheet fully Set project goals and deadlines and follow
them Meet often as a team Communicate
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Professor John Johnson
ECE Shop
Joseph Malcolm
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