VISVESVARAYA TECHNOLOGICAL UNIVERSITY,

BELAGAVI-590014, KARNATAKA

A Seminar Report

On

“VOICE CONVERSION FOR SILENT SOUND TECHNOLOGY”

A Seminar Report Submitted In Partial Fulfillment of the requirement for the Award of the

Degree of Bachelor of Engineering in Electronics & Communication

Submitted by

Mr. Lohit B. Dalal

USN: 2HN11EC020

Under the Guidance of

Prof. N. K. Honnagoudar

Department of Electronics & Communication Engineering

HIRASUGAR INSTITUTE OF TECHNOLOGY,

NIDASOSHI-591236

2014-15

SJPN Trust’s

HIRASUGAR INSTITUTE OF TECHNOLOGY,

NIDASOSHI-591236

Department of Electronics & Communication Engineering

2014-2015

Certificate

This is to certify that the Seminar entitled “Voice Conversion for Silent Sound Technology” carried out

by Mr. LOHIT DALAL, USN: 2HN11EC020, a bonafide student of Hirasugar Institute of

Technology, Nidasoshi in Partial Fulfillment for the Award of degree of Bachelor of Engineering

in Electronics and Communication Engineering of the Visvesvaraya Technological University,

Belagavi during the academic year 2014-2015. It is certified that all corrections/suggestions

indicated for Internal Assessment have been incorporated in the Report deposited in the departmental

library. The Seminar Report has been approved as it satisfies the academic requirements in respect of

Seminar work prescribed for the said Degree.

GUIDE H.O.D PRINCIPAL

Prof. N. K. Honnagoudar Prof. S. B. Akkole Dr. N. C. Hiremath

ACKNOWLEDGMENT

Completing a seminar right on schedule is no doubt a demanding and daunting task. I was

fortunate to have my assistance of many people in this effort. I would like to mention some names

while many others might go unmentioned.

It is my pleasure to acknowledge the help I have received from individuals and institute. I

would like to thank the college in general and our principal Dr. N. C. Hiremath in particular for the

excellent facilities provided.

I am very thankful and obliged to our HOD Prof. S. B. Akkole for his encouragement and

insightful comments at virtually all stages of my seminar.

I also wish to express my warm and grateful thank to my respected guide

Prof. N. K. Honnagoudar for giving me the advice and valuable guidance.

I am very thankful to Prof. B. M. Shetake (seminar coordinator) for providing valuable

suggestions in carrying out this seminar successfully.

I also thank all professors and staff of ECE department for their constant encouragement.

I would like to thank my parents, classmates and friends who directly or indirectly helped me

in completing this seminar.

Mr. LOHIT DALAL

(2HN11EC020)

Abstract

When we are in movie theatre, bus, train there is lot of noise around us. We can’t speak properly on a

mobile phone. In future this problem is eliminated with the help of silent sound technology. It is

technology that helps you to transmit information without using vocal cords. This technology notices

every lip movement & transforms them into a computer generated sound that can be transmitted over

phone. Hence person on another end of phone receives the information in audio. Silent sound

technology is perfect solution for those people who have lost their voice but wish to speak on mobile

phone. This device is developed by Karlsruhe Institute of Technology (KIT) Germany. It uses

Electromyography and Image processing (Ultrasound SSI) for monitoring tiny muscular movements

that occur when we speak and converting them into electrical pulses that can then be turned into

speech without a sound uttered. When demonstrated, it seems to detect every lip movement and

internally converts the electrical pulses into sound signals and sends them neglecting all other

surrounding noise. So, basically, it reads your lips. It is definitely going to be a good solution for

those feeling annoyed when other speak loud over phone.

CONTENTS

CHAPTER NO. PAGE NO.

CHAPTER 1 INTRODUCTION………………………………………………………….........1

CHAPTER 2 NEED FOR SILENT SOUND...………………………………….…………......2

CHAPTER 3 METHODS OF SILENT SOUND TECHNOLOGY....………..……………......3

3.1 ELECTROMYOGRAPHY……………………………………………………...3

3.2 IMAGE PROCESSING (ULTRASOUND SSI)…………………………….......6

CHAPTER 4 ADVANTAGES & DISADVANTAGES………………………...……………..8

4.1 ADVANTAGES...…….………..……………………………….……………….8

4.2 DISADVANTAGES…………………………………………………………......8

CHAPTER 5 APPLICATIONS…………………………………………………………….…...9

CHAPTER 6 RESEARCH & FUTURE PROSPECTS.…..………………………………….....10

CONCLUSION…………………………………………………………………………………...11

REFERENCES……………………………………………………………………..…………….12

LIST OF FIGURES

Figure Label Page No.

Fig 2.1 Common peoples talking at same place

without disturbance

2

Fig 3.1.1 Electromyography sensors attached to face

& body

4

Fig 3.1.2 Electromyography [EMG] Signal

Generation

5

Fig 3.2 Range of sound signals 6

Fig 3.2.1 Silent Sound Interface [SSI]

Procedure

7