1. Speech Recognition Calculator
ECE L02 - Group 8
Alfredo Herrera
John Holmes
Josh Liang
Alex Kee

2. Presentation Overview
Project Objectives
Project Approach
Design Overview
Market Analysis
Cost Analysis
Current Status

3. Project Objectives
Currently a Speech Recognition Calculator with the following features does not exist:
Hands-free user interaction.
Ability to perform simple arithmetic.
Reasonable accuracy.
Inexpensive cost.
Our group seeks to create such a Speech Recognition Calculator.

4. Project Objectives For Who? Why create this Product? What is the Cost?
Population with disabilities (limited hearing, vision, and movement).
Why create this Product?
Existing products fail to adequately fulfill the needs of the population with disabilities, hands-free operation.
What is the Cost?
~$200 final sale price.
~$100 to manufacture.

5. Project Approach
Arrows denote flow of data

6. Design Overview

7. Hardware Design: Flowchart
Get rid of LCD Display.

8. Design Overview Hardware: Software: C and Java
HM2007 interfaced with Arduino
Read 8 bits
Software: C and Java
Arduino
Programmed with C
Java acts as GUI

9. Design Overview

10. Software Design: Code Flowchart

11. Software Design: Processing Flow
Serial.read()
GUI Display
Serial.clear()
Serial.clear() Y
Delimiter?
Serial.read() N

12. Market Analysis Designed for the disabled.
Existing voice recognition calculators on the market fail to combine the following features:
Hands-free user interaction.
Ability to perform simple arithmetic.
Reasonable accuracy.
Inexpensive cost.

13. Cost Analysis

14. Cost Analysis

15. Cost Analysis

16. Cost Analysis

17. Current Status: Objectives Met
Completely Hands Free
Cost is around $230
Recognizes Numbers, Operators, and Words
Accuracy within 70%
Remote Connection Capability

18. Current Status: Problems
Speaker Independence:
Accents
Tone
Accuracy:
Four
Six
Software:
Arithmetic Solution
Java to C Interfacing Solution

19. Questions?