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The first immersion into the world of sound

Today we will discuss some questions concerning acoustic systems in your home and their influence on your life! To these questions the whole article or may be the ensuing articles will be about! The quality of sound which will be produced by your acoustic system will depend on components of the whole acoustic set. This article will help beginners and probably you to understand what are a typical acoustic system and what components it is composed of. The systems of home theatres are becoming more popular today because more and more people want to have a system of surrounding sound in their home. And from great variety of devices which are offered by a market today we need to choose something and of course this “something” should be the proper choice with great quality and optimal price in order we could enjoy our acquisition long time. However exactly on this step many of us do many mistakes in their choice because few of us know special characteristics of different models. So let us begin from the very beginning!

For the full-fledged operation of all elements of your home theatre four main components are used usually: speakers for frontal channels, for rear channels, the acoustics of central channel and sub buffer. For the dubbing of frontal stereo channels in home theatres an ordinary stereo pairs which is usually included into any Hi-Fi system is used. Nothing new was created in this sphere. The stereo acoustics has been serving for long period of time for dubbing of films in Dolby Surround Stereo sound format. It simultaneously reproduces music recordings. Such kind of versatility was conditioned by the technics’ high cost when not everyone amateur of good sound could afford to buy himself two pairs of speakers.  The function of frontal acoustics can make shelf models of speakers, but in this case there will not be enough sound and for this reason you can use sub buffer in order to enhance the sound. With the Dolby Pro Logic format appearance the stereo pairs had acquired acoustics for dubbing of central channel. Before this time effect-monitors have been used in big cinema theatres. On their basis “domesticated” speakers have been created. That time their diapason of reproduced sound frequencies was deliberately limited because of specific peculiarities of the Dolby Pro logic format.  With emergence of digital technologies in sound recording (in particular DVD discs) the situation has changed. The requirements to the central channel became stricter as to frontal channels. However numerous of companies are convinced that central speaker the most works on dialogues and exactly for this reason the one of the main requirement to central speaker is clearness in middle  frequencies transmission which means the credibility of actors’ voices reproduction. According to shape the central speaker is different from other acoustic system elements. It is often a horizontal positioned box with two dynamics. The principle of sound waves diffusion of such kind of acoustics consists in even and nondirectional emission of frequencies in horizontal flatness.

The article is to be continued in the next release of fresh and new articles…

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How to Clean and Maintain a Big Screen TV?

Dirt and dust can build up on your big-screen TV and affect its appearance and viewing quality. Most big screens being sold today are made with the LCD format, a liquid crystal display that uses pixels to create images. This type of flat panel TV is versatile – some can be mounted on a wall or placed on a stand. Most LCD televisions require few products for regular maintenance.
Instructions:

1. Turn off and unplug the big-screen TV.

2. Spray a microfiber cloth with LCD cleaner, or make your own. Mix 1 tsp. isopropyl alcohol with 1 cup water in a container. Dip a cloth into the solution and wring it out.

3. Wipe the LCD screen with the microfiber cloth to remove dust and smudges. Use gentle pressure, and use long vertical or horizontal strokes to prevent streaking.

4. Dry the screen with a clean microfiber cloth. Apply the same motion used to clean the screen.

5. Wipe off the television frame, stand and buttons to remove dirt and dust. Use a clean microfiber cloth dampened with LCD cleaner or the homemade solution.

6. Dry the television frame, stand and buttons with a clean microfiber cloth.

7. Plug in the television.

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Home automation

The automation system allows you to remove leaks by stopping up cold and warm water supply.  The signals to valves which block the water supply are transmitted through sensors on the floor. You can no longer be anxious about open tap in bathroom. However remember that water is the most valuable source on Earth and we should use natural resources sparingly. You can no longer remind your family members about evening watering of lawn. You can automate this process having set the time and duration of watering of every zone. And if the rain passes or the temperature is lower than needed the system will know that the watering is not needed. With automation system you can manage almost every process and control it. For example, having pushed the button “I’m at home” the system opens/closes garage, picks up venetian blinds and shutter at home, takes off your home from alarm system mode. You can easily control all commands through wall control panel, personal computer and even with the help of remote control, like SMS message. Thus having been outside your home you can send a message about sauna heating. The system allows control ozonization, floor heating in places of rest, ventilation, waterfalls, hills, underwater searchlight in accordance with set scenarios in pools. If you have aged parents and you worry about when leaving them alone at home then you can use radio control key ring or trinket. The principle of this trinket is in following functions: when extraordinary situation happens, one push to the button of this trinket will make dialing from the stationary home telephone to the emergency or other special services, on your mobile and telephone numbers of other near relatives. A telephone answering machine will leave a message for the employees of emergency service (the age of injured person, address, and if necessary the code of lock). You can also provide your under aged children with such kind of trinket.

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The light control

The movie begins when the light is dying out in a hall. That is what we remember from childhood. Your home theatre with all its components, such as entertainment unit (wall unit), home theatre seating, and other special furniture can move you to the Past and the light control will help you in it. The light will begin gradually disappear when you give the command to start watching a film. When the films is over or you want to break off it’s watching the light will turn on again. All what will be required from you in this case is only to choose the smoothness of light damping and the quantity of operated lamps in each case. However the light control is not need only in places where a home theatre is, it is needed also all over the home because your life will become more interesting and comfort with such kind of opportunity to control the light. Such kinds of systems do not only economize time and funds but also they are to entertain you. The system will illuminate the way to kitchen or bathroom at night and will demonstrate the light show to your guests during a party. Having adjusted the light control in accordance with all basic arrangements you can reprogram the equipment to the necessary mode in a month or two with help of specialists.

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What is a multi room?

Well, envisage a movie theatre where you came to watch the film of the Year! The hall is completely filled with people, the light is going out slightly and screen appears! The display has cropped up and suddenly it happens that as if a plane has flown over you! Is not it breathtaking!? And now please imagine the situation which is not very pleasant, but very realistic, because it happens almost every time you go to cinema: crunch of potato chips in the hall or somebody always shut the field of view by its generous back, or may be somebody who is near to you always makes a smacking sound with it’s lips drinking “Cola”! And what stuffiness is there! And may be it was not so irritating if not only the idea that you have wasted your time in the traffic jam on the way! And in spite of the film’s quality and captivating actions it is wanted to get up, break into a run to the entry and never come back to this hall! And now please imagine the same movie theatre but without spectators. In this movie theatre you will be able to relax and lie down. This will be the movie theatre where you will be able to control all events! This private movie theatre will allow you to manage the light intensity switching over to definite scene. Just one touch to the button “Film” and the system itself will pull down screen, switch on projector, gradually turn off the light and shut off the blinds! Just one simple push to the button and you can easily pass from DVD watching to TV channel!

“Multi room video” not only will give you the opportunity to gather entertaining functions, but also the control function. With the control function you will be able to get information from video cameras with automatically switching video images of all TVs to camera signal.  Another function of the system is available which is in transmission of information inside the home. Video entrance door intercom also will be available. With it you will always be able to look through the door in order to know who has come.

“Multi room audio” . May be you have tired of walking to the bathroom with radio or may your children complain about the garden where it is so boring without music. With the “multi room audio” system you will be able to listen to music in bathroom, garage or kitchen. How wonderfully it is to go for walk to the garden accompanied by beautiful music early in the morning. There is definite music design for each specific zone in the garden. This system will give you a chance to organize integrated music design inside home.
What is really useful is that when somebody arrives to you and you can not hear the door or telephone ringing because of loud music the system automatically will damp down the sound in every part of your home. Another wonder of this system is comprised in its possibility to put the rooms of your households in the “not disquiet” mode if in case somebody came home very late or part of your family already has went for sleep. The “multi room” system is proposed to be installed over the whole living area and at the same time it is to unite all zones of home in one music design. However it is apparent that every member of the family has its own preferences and liking for music. For example children like watching animated cartoons and you like listen to lyric ballad in the bedroom. In order not to disturb to each other the special noise and any kind of isolation will be fixed in living areas. With “multi room” system you will be able to enjoy that music which you will choose!

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Clever home: the control to which you’ve got accustomed to

Well, you have spent thousands of dollars on remarkable home theatre and home theatre seating. This set has everything: projection screen with special covering, projector of the latest model, build in acoustics hidden under the special drapery, powerful booster and DVD player with the most modern electronic systems. The estimation of acoustics in a room and sound proofing in the area has already been made. The collection of the best films has been placed in the beautiful special media storage.  Everything is very stylish and technically rich. You are looking forward to near enjoyment of the new video game. The one essential thing has been left to be known about its switching on mechanism by you! The control is the most important element of the correctly designed home theatre. Earlier with every new device has been coming to your living room a new remote control has been doing the same. Then the remote control which you had to “teach” to cope with several devices has appeared. It was not a complicated task but it has been requiring too much time and additional patience. But now the management of your home theatre should correspond to the new level, this is what is known as a dispatching of a building. The contemporary control panel provided with memory and powerful processor lets the professional installation to create interface which will completely conforms to your imagination about comfort and functionality. Just imagine that home dispatching can be under control of only one control panel. With the help of macro commands you can manage all things situated in the area of home theatre: audio, video equipment, lighting, temperature etc. The graphic view of the screen control can be designed in any style according to your choice. But this is not the all the clever home can offer you. The operation zone of the control extends to the whole home area and the dispatching of the house is maintained with its help. The audio, video equipment’s switching and the security system is under your control. The display from video cameras is transmitted to your screen control. You can even enter internet without getting up from your armchair. Without the pausing your favourite film you can watch what your children do in the room! This is a real control!

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What is a clever home? Intellectual building

How much do you pay for your apartment’s security now? Or may be you are still afraid of its’ safe guarding when going for holiday!? And how much cost the baby-sitter services? May be you’ve already thought of security officer for your child? Yes, of course without you all is going topsy-turvy! And what is the price of the intellect which everything keeps under control? But firstly let’s investigate what do you understand under the definition of “intellectual building”? Today the market offers you a unique chance to know about it practically! You will be able to manage your home with the help of elegant touch control panel or a universal remote control which will substitute the great number of panels from different devices, for example from TVs, DVDs, tuners, air-conditioners, boomchair, home theatre seating etc. The system “clever home” will allow gather the whole equipment in versatile entertaining system. The home automatically will make ready your movie theatre for film watching: will install the necessary parameters of illumination, pull down the screen, switch on the projector, adjust the sound and even keep up the necessary air temperature throughout the film watching. Your apartment or house will become your “clever” friend: it will pick up shutters tomorrow, switch on your favourite music or TV program, for example, on news channel, switch on air-conditioners or open the windows. In the evening your “intellectual friend” will fill your bath with water of needed temperature, add foam or bath salt, light candles and will create cozy atmosphere. It will even heat up supper if you want and will meet you with illuminated pavement to the garage. Do you like to surprise? Then make a party and meet your guests with illuminated path and various many-colored splashes of fountains. But for what you need it all if you enter your movie theatre only once a week, and you have no time for music tomorrow and for friends in the evening?

Then let’s talk about serious questions, for example about the protection of your home. Of course no security system can protect your children from troubles on the street. This is life. But anyway we have to admit that our home is our stronghold. You always will be in the awareness of what is going on in the home at the moment while you are in absence. You will be able to keep your eye on children and home with the help of video cameras installed inside and outside your home by using computer or mobile phone.
You will have not to come back halfway home any more thinking about kitchen range being off or the light. Right that moment your home will take care of it and it will switch off everything itself (except radiotelephone, fridge, and other similar devices). It will also activate the security guard system.  If have no one to take care of and the entertainment functions of the home are more important for you in this case think about surrounding things which are dear to you. Not taking into account their price of course. Because every thing purchased by you is precious for you by memories about it’s buying, or may be by delight you’ve experienced when you’ve been presented with it. Every thing has its own history, and the holding this history is wonderful thing actually. However how it can be easily lost at one moment! And the matter is not always in the theft. If fire alert happens or in fire hazard situation the system will block gas supply, switch off all electric sources, stop up ventilation and inform you about by SMS message. The system always in proper time and precisely reacts on changing physical parameters of environmental conditions, regulating lighting, heating, ventilation, temperature of water in pool or sauna, controlling the security system, electrical, gas and water supply. In spite of innumerable quantity of implemented functions, the “clever home” can be managed even by child. In a word the home will be your best friend because it will think as you think, work out all wishes, be friend for your friends and be a shield from enemies. And you always will be able to say proudly: “Yes, this is my home!”

 

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How to look smarter when nothing understanding in Home Theater Review?

High technologies sometimes are not easy understandable for us especially for our brain! That is why many people make their faces like they are genius while looking through technical guides! Sometimes their grimace is really funny! May be you think that reading technical guides and reviews obliges you to possess special knowledge? I will try to change your mind from this moment! Now I am going to tell some information about how it is easy to understand the basic information particularly the home theatre review! Do you have to be a technical wizard? Remember, if you have the basic components of a television, DVD player and sound system you are on your way! Before I begin the instruction let me tell you that it is better to review systems before you commence the system installation. A good place to start is to pick up a copy of Home Theater magazine. It’s full of excellent information on how to build and set up systems while providing excellent information on specific components which go into making it work. There is one fact that is very important to know about – the distance at which you are going to place your home theatre. Many specialists recommend place the home theatre at distance which equals to the television screen width and then multiplied by 2-3 times. It is important if you want to enjoy comfortable viewing and relaxation. With what important information the review will share? A good review of products will outline several factors including the essential elements required, the common mistakes to avoid and some good old basics. There are several levels of system set up. What level you are planning to take your system to depends on you and your budget actually. A good review will point out the room logistics or for those wanting something really special, read reviews on converting your basement into your very own cinema hall. It is sometimes very useful to look for reviews from those who have utilized the services of designers. Internet also provides you with useful information through forums where you can read very necessary information and moreover this information will include as the comments of those who have difficulties with system installation and those who has managed with it easily. So we can say that almost all sources of information available should be used! But firstly choose out the sources which are really reliable and rich in content and then begin scan with your eyes and brain everything which is interesting and useful!

Sometimes it seems us that to read special technical review is too difficult and it wastes too much time! But remember it is worth for that! Reading is very useful process, as it is training of your mind and brain! It helps you to develop analyzing capabilities to find critical approach. Moreover you are becoming more competent in questions which others don’t know! In the end you can give advice to somebody and you can not worry about your grimace! Because it is not just “picture” of your intelligence on face, but also it is your intelligence! Thus we’ve managed with problem of how to look cleverer in front of somebody! Just become clever! Sometimes the answers are close to us we just don’t want to try! I recommend you always to train yourself, improve yourself, speed to perfectness.

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When Was the First Television Made?

Today our life is integrated with such great achievements of science and high technology as plasma TVs, DVDs, internet, radio etc. But almost nobody ask himself about how the humanity had achieved such high results! We got accustomed to use TV as it is imprescriptible part of our life. However sometimes we need to know something more about TVs than just the date of its invention. Television is a part of our everyday life, but when was the first television made? And by whom it was made? Sometimes we all wonder what life would be like without the technological devices and services to which we have grown accustomed. Television is like that. Before the invention of television and the widespread availability of it, news and entertainment was only available by listening to the radio or going to the movies or reading a book. That was a wonderful life, is not it? People had chances to read books and know authentic stories not that cinematized today with great changes. But anyway we are glad to have TVs. So, let’s find out when was the first television made?

Development of the Television

What had given the push to the appearance of the first TV? Of course the development of the cathode ray tube (CRT) which was the main and central part of the first TVs. But how it had been working? The process seemed to be very simple. The image on the screen is the product of an electron beam that flows over the surface of the tube. The electrons strike the surface of the tube and as a result a bright pulse of light is emitted on the screen. The signal fed to the input of the electron beam determines what is seen on the CRT. Who had given the birth of a television device? It was a very clever young high school student who had envisioned a television. His name was Philo Farnsworth. At the age of fifteen he was admitted to Brigham Young University but with no long stay there because of some family troubles. At the age of 21 Philo began to file patents on various spheres of his invention (he was fond of studying physics and mathematics during school years). That time he and his wife were living in California. At the same time another outstanding scientist from Russia (he was an immigrant) – Vladimir Zworykin had been trying to develop the ideas of how to make a television system. He designed the system in drawings. They were so-called competitors. But Philo had one significant advantage. He had built and demonstrated his invention to the press in 1928 while Vladimir Zworykin had his ideas in theory only. It appears that Philo had passed ahead of the Russian. When the Second World War came the progress was halted. After the war, the time limit on the patents had almost expired. As soon as their time limit had expired, RCA quickly bought them and proceeded with their development for the open market. They had cheated Philo out of his share of the royalties.

The First Television Network

The first television network was established in 1928 in Germany. By 1936, the Olympic Games were broadcasted in Leipzig and Berlin and citizens could view the games in their hometowns. Since that time the television has been influencing on society. Around the world people began to get information about the latest news and to entertain staying home by using television. Exactly since that time the first ideas about TV stands and other entertainment furniture like wall units and theatre sitting has been appearing. There is one interesting fact – according to official statistics of Japan Japanese watches a TV 9 hours per day in average. After we have discovered the information about the time the first prototype of contemporary television was made we are to know who had invented it?

Who Invented the TV?

This is the big question! May be it could be a big big question for majority of us if there were not an internet in almost every home today! Thanks to all-powerful and omniscient world wide web which enriches our wit every time we are in internet! But this was little lyrical digression from the main and very important question to be more precisely – who invented the TV! Ok, I know that you can find all information in internet! But, listen, why to waste time on things which are spread all over the global web through sites if you can just find everything concerning the TV invention in one document!? And again it was little lyrical digression from the theme! I promise it never repeat again during this article!

In the late 1800s, images were able to be electronically transmitted using early fax machines. For example, images were able to be transmitted across the pantelegraph. In 1878, the earliest concept of the television was suggested – the idea of electronically transmitted images that were in motion. This idea was sketched under the title “telephonoscope.”

And now the very moment you have been waiting for since the beginning of this article! It was Paul Gottlieb Nipkow who in 1884 patented the first electromechanical television system with a scanning disk. This scanning disk was a spinning disk that had a number of holes that allowed rasterization. At this moment you are probably asking yourself what is rasterization? Rasterization was the process by which a visual image was converted into electrical pulses. When an image was captured by this rotating disk, each hole captured a portion of the whole image. This design became important to the development of the television.  When Nipkow first patented the invention, it was manly used to transmit halftone images.

How the process of advancements in technology has been taking its pace through the 20-th century?

The development of the television truly began to take shape in the twenties. John Logie Baird was the person who demonstrated his abilities in transmitting the image of a silhouette, the images of moving, monochromatic pictures in 1925. Now I’ll try to explain in simple words why he could do it! The scanning disk of John was able to show an image of thirty lines resolution which was a great technological breakthrough that times because this resolution was just clear enough to discern certain details of the image. But the image could only be transmitted due to “high” resolution of the scanning disk but also due to usage of a double spiral lenses. Once a very talented engineer had appeared in 1926 – it was Kalman Tihanyi. I know that the names of many people who had deposited their skills and intelligence in the development of high technology may be unknown for you! But it is time to know the “science hero” by sight in the end! That very talented engineer whose name was Kalman created the design for a television system that used electronic scanning and display elements. Actually, he could use the idea of charge storage in his design. This idea was realized by him within the scanning tube. The 1927 became a threshold between the pro-television era and the of age “TV rule”. In 1927, Leon Theremin invented a mirror-drum television system. This system used the concept of interlacing and was able to display an image resolution of one hundred lines. Imagine, just two years before that a thirty line resolution system was invented! Do you feel how the humanity develops fast? This tendency can be observed through the whole history. And the more we were brought closer to the present times the faster the mankind has been growing!

The same year of 1927 had shown us another outstanding person – Herbert E. Ives. He is known for its achievement in transmission a moving image across a cable between Washington D.C. and New York City. That was the great day! The one out of many when the cable system showed its great capabilities! Herbert used a fifty-aperture disc for the transmission, and the transmission operated at the speed of sixteen frames for every sixty seconds. It is worth to point out that the sizes of the screens that he transmitted to were about twenty-four by thirty inches – very small! He was then able to transmit a moving image using the radio from New Jersey. Many genius people had invested their skills to the TV system development, but as a rule there is one person who is granted for the merits! In 1927, Philo Farnsworth created the first working television system that was able to electronically scan images into it and then display the images. Farnsworth success was demonstrated to the press in 1928.

What Were the Names Given to the First Televisions?

When TVs were first displayed to the public they were called “Image Dissectors”. There was another name for TVs not less funny – “Radio with Pictures”! Exactly such simple and primitive forms got the names of first televisions. Today we can only wonder why people of the first half of the 20 century had been thinking in such primitive way! Though it is apparent! That time the humanity was at the 3-rd stage of the technological setup! Thus grandparents of our parents or even grandparents could not imagine that the humankind can develop in such fast speed! However It took a long time for early televisions to become mainstream and it was decades from the time of their invention until they became a regular in most homes.

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Interesting decisions for wall units

In home interior by means of wall units it is possible to reach several goals at once. Such kind of furniture not only organizes the space and make it stylish but also improve it as of ergonomics. All necessary things including TV and technical gadgets can be compactly placed in one linear wall unit (along one side of the wall). If you want to save additional space and to use it more effectively then you should choose angle wall unit which will become a special spice for the interior. Moreover in big spacious place a set of three sides will look very advantageously. One of the most original decisions will be the wall unit from major components of different heights. Such kind of furniture can be installed even along wall with a window or doorway. It can be used not only in living room but also in children room.

One wall unit for two

One children room for two children is not rarity today. But having great desire you can single out individual space for each child even in small room. In order to separate one space for two children you can use the following variant. From the one side of linear wall unit set one bad for one child, from the other side – for the second child. The wall unit is divided for two parts according to children. By the way the doors of one part are to be opened from one side while the doors of the second part from the other side. This method will let children not to disturb each other when getting thing out of the wall unit. There are great many ways to diversify the interior of your home with the help of wall unit.
The composition consisting from elements of different heights is one of the ways. Just join in the creation of your home with fancy and you can see how many interesting and original decisions you can get. For example the wall unit in the shape of pyramid change the whole interior, add a feeling of stability and peace to your room.  Facilities of new self-contained wall units are not limited. Remember that with the help of wall units the appearance of dwelling space can be essentially transformed. All depends on you!

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