1. Presentation On
Silent Sound Technology
….Silence is the best answer for all
the situations …even your mobile
understands !
Submitted To: Charmi Purohit
Rachana Kamalia
Mira Chavda
Prepared By: Kumbhani Minaxi
2. Index
Introduction
Need For The Technology
Origination
Recent Event
Methods
Applications
Restrictions
Future Prospects
Conclusion
References
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3. Introduction
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.
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4. Need For The Technology
An end to embarrassed situations such as:
A person answering his silent, but vibrating cell phone in a
meeting, lecture or performance, and whispering loudly.
In the case of an urgent call, apologetically rushing out of
the room in order to answer or call the person back.
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5. Origination
The idea of interpreting silent speech electronically or
with a computer has been around for a long time, and
was popularized in the 1968 Stanley Kubrick science-fiction
film ‘‘2001 – A Space Odyssey”.
‘‘2001 – A Space Odyssey”
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6. Recent Event
In the year 2011 at Cebit, 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.
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7. Methods
Silent Sound Technology is processed through some
ways or methods. They are:
• Electromyograpy(EMG)
• Image Processing
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8. Electromyography (EMG)
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.
It is a technique which monitors tiny muscular
movements and pulses generated by it . The
transducers involved converts the pulses into electric
signals .
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9. 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 .
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10. 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.
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11. Working of Electromyography
A needle containing two fine-wired electrodes is inserted
through the skin into 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.
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12. Each electrode track gives only a very local picture of the
activity of the whole muscle. Because skeletal
muscles differ 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.
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14. Image Processing
Analysis of remotely sensed data is done using various
image processing techniques and methods that includes:
Analog image processing
Digital image processing
Analog image processing
Analog 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.,
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15. 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-processing
Display and Image enhancement
Information extraction
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Digital Image Processing
16. Pre-processing
Pre-processing consists of those operations that prepare
data for subsequent analysis that attempts to correct or
compensate for systematic errors.
Then analyst may use feature extraction to reduce the
dimensionality of the data.
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17. Image enhancement
It improves the interpretability of the image by increasing
apparent contrast among various features in scene.
The aim of image enhancement is to improve the
interpretability or perception of information in digital data for
human viewers.
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18. Information extraction
In 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.
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19. Applications
The 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.
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20. 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.
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21. Future Prospects
Silent 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.
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