ECE 4760 Spring 2011
A Smart Voice Decoder System for Vowels
By: Annie (Wei) Dai (wd65@cornell.edu) and Youchun Zhang (yz526@cornell.edu)
 


Appendix
Appendix A: Commented Code

Download the commented code here.

Appendix B: Schematics
  • Download Prototype Board Schematic for Mega644 here.
  • Download Audio Amplifer Schematic here.
  • Download Serial Communication Panel Schematic here.
  • Download Switch Circuit here.
    • Appendix C: Parts & Costs
    Parts Name Quantity Source Cost/each Cost
    Mega644 1 ECE 4760 Lab $8 $8
    Solder Board 2 ECE 4760 Lab $1 $2
    RS232 Connector 1 ECE 4760 Lab $1 $1
    MAX233 1 ECE 4760 Lab $7 $7
    Microphone 1 ECE 4760 Lab Free Free
    LM358 Amplifier 1 ECE 4760 Lab Free Free
    Push Button 3 ECE 4760 Lab Free Free
    LED 3 ECE 4760 Lab Free Free
    Jumper Cables 10 ECE 4760 Lab $1 $10
    Header Pins 14 ECE 4760 Lab $0.05 $0.7
    Resistors Several ECE 4760 Lab Free Free
    Capacitors Several ECE 4760 Lab Free Free
    Power Supply 1 ECE 4760 Lab $5 $5
    Custom PCB 1 ECE 4760 Lab $4 $4
    Dip Sockets 2 ECE 4760 Lab $0.5 $1
    Total Cost $38.2
    Appendix D: Work Division
  • Average workload: 20 hour per week
  • Theoretical analysis: Annie Dai, Youchun Zhang
  • Hardware setup: Annie Dai
  • MATLAB simulation: Youchun Zhang
  • Code debugging: Annie Dai, Youchun Zhang
  • Report: Annie Dai, Youchun Zhang
    • Appendix E: References
  • Download Mega644 datasheet here
  • Professor Land's FWT test code regarding how to find the maximum component of each sequence and displays the corresponding LED on STK500
  • Previous ECE Project: Musical Water Fountain
  • R. Nave's page on vowel formants here
    • Appendix F: The Authors

    Welcome Screen

    (top)Youchun Zhang, (bottom) Annie (Wei) Dai

     

    Copyright ECE 4760 Spring 2011 Annie (Wei) Dai and Youchun Zhang