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Speech Recognition Calculator

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					   Speech Recognition
           Calculator
ECE 4884 - L02 - Group 8
Alfredo Herrera
John Holmes
Josh Liang
Alex Kee
         Presentation Overview

n   Project Objectives
n   Project Approach
n   Design Overview
n   Market Analysis
n   Cost Analysis
n   Current Status


                                 2
             Project Objectives
n   Currently a Speech Recognition Calculator
    with the following features does not exist:
    n Hands-free user interaction.
    n Ability to perform simple arithmetic.

    n Reasonable accuracy.

    n Inexpensive cost.

n   Our group seeks to create such a Speech
    Recognition Calculator.

                                                  3
                Project Objectives
n   For Who?
    n    Population with disabilities (limited hearing, vision,
         and movement).
n   Why create this Product?
    n    Existing products fail to adequately fulfill the needs of
         the population with disabilities, hands-free operation.
n       What is the Cost?
    n    ~$200 final sale price.
    n    ~$100 to manufacture.


                                                                  4
              Project Approach

                             Hardware




                             Arduino



                Software                User




Arrows denote flow of data
                                               5
Design Overview




                  6
Hardware Design: Flowchart




                             7
                  Design Overview
n   Hardware:
    n   HM2007 interfaced with Arduino
         n Read 8 bits

n   Software: C and Java
    n   Arduino
         n  Programmed with C
         n Java acts as GUI




                                         8
Design Overview




                  9
Software Design: Code Flowchart




                              10
Software Design: Processing Flow

        Serial.read()


        GUI Display
                             Serial.clear()


        Serial.clear()              Y


        Serial.read()        Delimiter?

                         N




                                              11
               Market Analysis
n   Designed for the disabled.
n   Existing voice recognition calculators on the
    market fail to combine the following
    features:
    n Hands-free user interaction.
    n Ability to perform simple arithmetic.

    n Reasonable accuracy.

    n Inexpensive cost.


                                                12
Cost Analysis




                13
Cost Analysis




                14
Cost Analysis




                15
Cost Analysis




                16
    Current Status: Objectives Met
n   Completely Hands Free
n   Cost is around $230
n   Recognizes Numbers, Operators, and
    Words
n   Accuracy within 70%
n   Remote Connection Capability



                                         17
        Current Status: Problems
n   Speaker Independence:
    n Accents
    n Tone

n   Accuracy:
    n Four
    n Six

n   Software:
    n Arithmetic Solution
    n Java to C Interfacing Solution

                                       18
Questions?




             19

				
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posted:7/16/2013
language:English
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