Prince Gupta presented on silent sound technology, which allows communication without vocalizing. It uses electromyography to monitor muscle movements when speaking and converts them into electrical pulses and speech. Image processing of lip movements is another method. Advantages include silent phone calls and sharing confidential information discreetly. Applications include military communication and use by astronauts and those who cannot speak. Future improvements could incorporate the sensors directly into phones rather than using separate devices.

1. Technical Seminar
on
SILENT SOUND TECHNOLOGY
Presented By:
PRINCE GUPTA 1BH19CS070
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
Under the Guidance of :
Dr THENAPPAN S
Prof Dept. of CSE
Department of Computer Science & Engineering
BANGALORE TECHNOLOGICAL INSTITUTE
(ISO 9001:2015 Certified Institute)
Sarjapura Road, Kodathi, Bangalore-560035
2022-23

2. BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering

3. BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
CONTENT
• INTRODUCTION
• NEED FOR SILENT SOUND
• METHODS
• ADVANTAGES
• DISADVANTAGES
• APPLICATIONS
• FUTURE PROSPECT
• CONCLUSION

4. BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
INTRODUCTION
Silence is the best answer for all the situations …even your mobile understands!
 The word Cell Phone has become greatest buzz word in Cellular Communication
industry.
 There are lots and lots of technology that tries to reduce the Noise pollution and
make the environment a better place to live in.
 I will tell about a new technology known as Silent Sound Technology that will put
an end to Noise pollution.

5. BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
It is a technology that helps you to transmit information without using your vocal
cords.
Hence person on other end of phone receives the information in audio.
Developed at the Karlsruhe Institute of Technology,Germany
Expected in the next 5-10 years. Once launched, will have a drastic effect and with
no doubt, will be widely used.

6. NEED FOR SILENT SOUND
Silent Sound Technology will put an end to embarrassed situation such as-
 An person answering his silent, but vibrating cell phone in a meeting, lecture or
performance, and whispering loudly, ‘ I can’t talk to you right now’ .
 In the case of an urgent call, apologetically rushing out of the room in order to answer or
call the person back.
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering

7. METHODS Electromyography:
Silent Sound Technology is processed through some ways or methods.
They are
• Electromyograpy(EMG)
• Image Processing
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering

8. Electromyography
• The Silent Sound Technology uses electromyography, monitoring tiny
muscular movements that occur when we speak.
• Monitored signals are converted into electrical pulses that can then be
turned into speech, without a sound uttered.
• Electromyography (EMG) is a technique for evaluating and recording the
electrical activity produced by skeletal muscles.
• An electromyography detects the electrical potential generated by muscle
cells, when these cells are electrically or neurologically activated.
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering

9. EMG-PROCEDURE
• There are two types of EMG
1. Surface EMG
 Four sensor are used they are vibration,pressure,motion and
electromagnetic sensor.
2. Intramuscular EMG
• A Needle electrode or a needle containing two fine – wire electrodes is
inserted through the skin into the muscle tissue.
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering

10. Basic mechanism of Electromyography where the muscle activity is analyzed by
the Electromyograph to generate an Electromyogram
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
ELECTROMYOGRAPHY SIGNAL GENERATION

11. IMAGE PROCESSING
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
• The simplest form of digital image processing converts the digital data tape into a film image
with minimal corrections and calibrations.
• Then large mainframe computers are employed for sophisticated interactive manipulation of the
data.
• In the present context, overhead prospective are employed to analyze the picture.
• In electrical engineering and computer science, image processing is any form of signal
processing for which the input is an image, such as a photograph or video frame; the output of
image processing may be either an image or, a set of characteristics or parameters related to
the image. Most image-processing techniques involve treating the image as a two-dimensional
signal and applying standard signal-processing techniques to it

12. CONTINUED
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
Fig 1.Silent Sound Interface(SSI) using Image Processing

13. • Helping people who have lost their voice due to illness or accident.
• We can make silent calls even if we are standing in crowded place.
• Very useful for sharing confidential information like secret PIN number on phone at
public place.
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
ADVANTAGES

14. DISADVANTAGES
• It will be like always talking to robot.
• This technology will be very costly for a common man.
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering

15. APPLICATIONS
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
 Silent Sound Techniques is applied in Military for
communicating secret/confidential matters to others.
 This technology can be best utilized by astronauts & dumb
peoples.

16. BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
FUTURE PROSPECT
Without having electrodes & sensors hanging all around the face,these
electrodes & sensors will incorporated in to cell phones.
Features like lip reading based on image processing & recognition these are
incorporated in to cell phones rather than using computers(Ultrasound SSI).

17. CONCLUSION
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering
• Thus Silent Sound Technology, one of the recent trends in the
field of information technology implements ”Talking Without
Talking”.
• It will be one of the innovation and useful technology and in
mere future this technology will be use in our day to day life.

18. THANK YOU!!
BANGALORE TECHNOLOGICAL INSTITUTE
Department of Computer Science & Engineering