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Beethoven’s Ear: Microcontroller and DSP Design for Audio Processing

This project outlines the design constraints and components used in creating Beethoven's Ear, an innovative audio processing device. It features a microcontroller interface, DSP capabilities, and essential parts like low-noise audio amplifiers, filters, and high-tolerance components. The device operates with a user-friendly LCD interface and supports various communication protocols including SPI, UART, and I2C for file transfer and user input. The chosen microcontrollers include PIC24 and dsPIC, which are complemented by DSP choices such as Blackfin for high-speed processing.

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Beethoven’s Ear: Microcontroller and DSP Design for Audio Processing

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Presentation Transcript

  1. ECE 477 Group 13Beethoven’s EarDesign Constraints David Duemler Martin Pendergast Nick Kwolek Stephen Edwards

  2. Overview • Misc. Parts • Micro-Controller • DSP

  3. Block Diagram

  4. Miscellaneous Parts • Filter Components • Very Low Tolerance Inductors/Capacitors • Audio Amp • Low Noise • LCD • ADC • LTC1400CS8#PBF – Linear Technology Company • 400 KSPS • Power Supply Components • Wall Powered

  5. Micro Controller Considerations • SPI – Communicate with DSP • Communication to LCD Display – SPI/UART • File Transfer– SPI/I2C/UART • User Input – General Purpose IO/Quadrature Encoder • Timer – Metronome • Potential Micros • PIC24EP512GU814 • PIC32MX575F256H • PIC24FJ256GB206

  6. DSP Constraints • DSP Choices • Blackfin – FAST • 400 MHZ, 800 MMACS • On Chip SRAM – 116 kB • dsPIC – Included ADC • 40 MIPS • On Chip RAM – 30 kB

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