SILENT SOUND TECHNOLOGY

SILENT SOUND TECHNOLOGY PRESENTED BY K.DEVI PRIYA RAJESWARI ECE FINAL YEAR 11211A0430

ContentsIntroductionNeed For Silent Sound TechnologyWhat It Is??Recent EventsMethodsElectromyography (Emg)Working Of ElectromyographyImage ProcessingImage Processing Techniques ApplicationsRestrictionsFuture ProspectsConclusion

IntroductionThe 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.

This presentation tells about a new technology known as Silent Sound Technology that will put an end to Noise pollution.

Need For Silent Sound TechnologyAn end to embarrassed situations such as:A person answering his silent, but vibrating cell phone in a meeting, lecture or performance, and whispering loudly, I cant 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.

What it is..?It is a technology that helps you to transmit information without using your vocal cords.This technology aims to notice lip movements & transform them into a computer generated sound that can be transmitted over a phone.Hence person on other end of phone receives the information in audio.

Recent eventsThis year at CeBET, one of the largest trade fair, a new concept called SILENT SOUND TECHNOLOGY was demonstrated.This technology is being developed by scientists of Karlsruhe Institute of Technology ( KIT ), Germany.

MethodsSilent Sound Technology is processed through some ways or methods. They are:

Electromyograpy(EMG)

Image Processing

ElectromyographyThe 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.It is a technique which monitors tiny muscular movements and pulses generated by it . The transducers involved converts the pulses into electric signals .

Electromyography sensors attached to the face records the electric signals produced by the facial muscles, compare them with pre recorded signal pattern of spoken words

When there is a match that sound is transmitted on to the other end of the line and person at the other end listen to the spoken words.

Electromyography

Working of ElectromyographyA needle containing two fine-wired electrodes is inserted through theskininto the muscle tissue.Normal muscles at rest make certain, normal electrical sounds when the needle is inserted into them. Then the electrical activity when the muscle is at rest is observed. Each electrode track gives only a very local picture of the activity of the whole muscle. Becauseskeletal musclesdiffer in the inner structure, the electrode has to be placed at various locations to obtain an accurate signal.

Thus by this way the speech can be communicated without sound.

Image ProcessingImage 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. In the silent sound technology the output of this image processing is an audio record.

Image Processing Techniques : Analysis of remotely sensed data is done using various image processing techniques and methods that includes:Analog image processingDigital image processing

Analog image processing techniques are applied to hard copy data such as photographs or printouts. It adopts certain elements of interpretation, such as primary element, spatial arrangement etc.,

Digital Image Processing

Digital Image Processing involves a collection of techniques for the manipulation of digital images by computers. It contains some flaws. To overcome the flaws and deficiencies in order to get the originality of the data, it needs to undergo several steps of processing.

Digital Image Processing undergoes three general steps: Pre-processingDisplay and Image enhancementInformation extraction

Pre-processingPre-processing consists of those operations that prepare data for subsequent analysis that attempts to correct or compensate for systematic errors

Image enhancementThe aim of image enhancement is to improve the interpretability or perception of information in digital data for human viewers.

Information extractionIn this remotely sensed data is subjected to quantitative analysis. IE is used in evaluating, and comparing different Natural Language Processing technologies. The final result of the analysis consists of maps or images, data and a report. Then these are converted to corresponding signals.

ApplicationsThe Technology opens up a host of application such as mentioned below:

As we know in space there is no medium for sound to travel therefore this technology can be best utilized by astronauts.

Helping people who have lost their voice due to illness or accident.

We can make silent calls even if we are standing in a crowded place.

Restrictions

Translation into majority of languages but for languages such as Chinese different tone holds different meaning, facial movements being the same. Hence this technology is difficult to apply in such situations.

From security point of view recognizing who you are talking to gets complicated.

Even differentiating between people and emotions cannot be done. This means you will always feel you are talking to a robot.

Future ProspectsSilent sound technology gives way to a bright future to speech recognition technology.

Without having electrodes hanging all around your face, these electrodes will be incorporated into cell phones .

It may have features like lip reading based on image recognition & processing rather than electromyography.

Also reducing the time taken to process the image in digital image processing.

ConclusionSilent Sound Technology, one of the recent trends in the field of Information technology implements Talking Without Talking.

Engineers claim that the device is working with 99 percent efficiency.

It will be one of the innovative and useful technology and in mere future this technology will be of use in day to day life.