As Digital Still Cameras (DSC) become smaller, cheaper and higher in resolution, photographs are increasingly prone to blurring from shaky hands. Optical image stabilization (OIS) is an effective solution that addresses the quality of images, and is an idea that has been around for at least 30 years. It has only recently made its way into the low-cost consumer camera market, and will soon be migrating to the higher end camera phones. This paper provides an overview of common design practices and considerations for optical image stabilization and how silicon-based MEMS dual-axis gyroscopes with their size, cost and performance advantages are enabling this vital function for image capturing devices

1. 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

2. 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

3. 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)

4. 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.

5. 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

6. 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