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Sign Language Representation Using Speech Recognition

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Aim of project

To represent the American Standard Sign Language which can be understood by the deaf and the dumb.

To provide a software package to convert the speech signal, into the sign language

Social Cause

To bridge the communication gap between the normal people who cannot understand the sign language, and the deaf and dumb who cannot understand the normal speech.

Introduction to S-L

American standard sign language was demonstrated around 1980 in United States and many other countries, to provide education for the people who have problem in speaking and hearing the words.

Sign language is a method of communication which uses hand movements .

Research demonstrated that American Sign Language meets all of the requirements for human languages

LITERATURE SURVEY

To communicate with deaf and dumb person the existing methods are lip reading, writing down word and finger spelling.

We are developing such a system that translates spoken language to sign language via robotic arm using speech recognition.

The current stage of the process focuses on translating speech signal to American sign language

Speech recognition

Recognition is the process of translating Spoken words into Text.
Speech Recognition consist of two steps
Feature Extraction
Feature Matching

MFCC technique

Framing process enable to group the samples as per to requirements.

Discrete Fourier Transform is required to analyze the spectrum of the speech wave.

Human hearing perception of frequency is linear up-to 1000 Hz and logarithmic over 1000 Hz.

Speech wave bring into time domain by Inverse Discrete Fourier Transform

application

Public places like Airports, Railway stations and counters of Banks, Hotels etc. where there is communication between different peoples.

A Person can deliver a lecture in deaf and Dumb school using our project

Future scope

SL with speech recognition ,it is possible to speak directly with a robot without any physical engagement to communicate with the dumb and deaf easily.
It is possible to make a software package to automatically install in video and movie services with the help of set top box and record the speech words.
At the time of playing the movie represent the sign language by animated hand at the corner of screen

Conclusion

With the help of this project the normal people can communicate with deaf and dumb peoples and we will increase the communication between normal person and deaf and dumb person.

To provide education for the people who have problem in speaking and hearing the words.