Category Self Image & Branding

Your voice is a very important tool of communication. The tone, the volume and the pinch off your voice communicate a lot more than your words. A baby attracts much more attention by crying aloud ‘Wah’. The baby’s power of ‘wahs!’ is greater than an adult’s power of words.

Your voice conveys a lot when it is deep and deliberate. By the force of our habits and social conditioning we begin to believe that we can speak in only one type of voice. As a matter of fact you can vary your tone and voice-type with a little practice. In the privacy of your study you can deliberately change your voice by imagining you are a different person. Movie actors often practice speaking in different voices. Here is a voice-enhancing exercise prescribed by my teacher Justin Cohen that will help you develop your voice:

1. Sit in a relaxed upright position or lie down
2. Breathe deeply and slowly. While breathing in, your abdomen should expand. As you breathe out, it should contract. Your chest and shoulders should remain still.
3. Now, each time you inhale, allow the air to slightly vibrate your vocal chords so that they let out a soft deep sound like-Ahh!
4. While remaining relaxed, push the air out a little harder allowing the sound to grow louder and longer.
5. Now close your mouth and feel the air vibrate against your lips in a humming sound. If you are relaxed enough, your lips will tingle.
6. Finally, open your mouth and let the voice out with a little more volume. You can notice your body vibrating faintly like a washing machine.

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               Computers that are connected to a telephone line incorporate a device called a modem. It turns signals into a form that can be transmitted along the telephone line. The name ‘modem’ comes from the term Modulator-Demodulator. The device modulates, or changes, the digital signal from a computer into an analogue signal, which is the type of signal that travels along telephone lines. The modem decodes or demodulates the signals it receives back so they can be read by the computer.

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               Mobile phones, which are properly called cellular phones, allow calls to be made wherever the caller happens to be. They are called cellular phones because a territory is divided up into a series of small areas, or cells, each with a small radio station. When a call is made, the telephone sends a radio message to the base station, which in turn passes it to a mobile phone exchange. Here the signal can be routed to the ordinary telephone system, or transmitted back to another mobile phone. Mobile phones use low-powered microwaves to send and receive messages to and from the base station.

               Television pictures, radio and telephone communications are bounced off satellites to cover the greatest possible area of the world. Satellites orbiting the Earth must travel at high speed to escape being brought down by the Earth’s gravity. As the Earth itself is spinning rapidly, there is a point above the Earth’s surface where the orbiting speed of the satellite can be matched with the rotational speed of the Earth. At this point —35,900 kilometres above the Earth — the satellite appears to stand still and is said to be in a geostationary orbit.

Geostationary satellites can be positioned right over the areas where they are needed. They can also be used as spy satellites, because they remain constantly over a region of interest.

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               Television cameras break a picture into electrical signals, separating them into three colours (red, blue and green) and turning them into coded messages. Sound is recorded and coded at the same time. The coded pictures and sounds are transmitted by radio waves, electrical cables or optical fibres to the receiver. Inside a television receiver the signals travel to three electron guns — one for each colour. The electron guns emit streams of electrons, which are directed at a fluorescent screen. Magnets bend the electron streams so that they scan back and forth from top to bottom, exciting the phosphors in the screen and producing a colour image. They scan so quickly that our eyes see the images as a continuous picture.

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           Telecommunications is the passing of messages and information over long distances by means of electrical signals. These signals may be carried along wires, like telephone, telegraph and fax messages, or by radio waves.

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