SDTV Vs EDTV Vs HDTV Differences

This article covers the NTSC (National Television System Committee) only. Which is the television standard in North America.

One walk around the big box department stores and you will find a number of TV's on display for sale. Known as the "Wall of Eyes" (WOE), it's a display meant to catch your eyes so that you can make a purchase as quickly as possible. Usually, they will have on the description near the TV that will show SDTV or EDTV or HDTV's. This is an explanation of the three types of displays.

Here are the types of display.

SDTV - Standard Definition TV - Resolution is 480i
EDTV - Enhanced Definition TV - Resolution is 480i and 480p. Supports wide-screen.
HDTV - High Definition TV - Resolution is 480i, 480p and can vary amongst the different High Definition sources. Supports wide-screen.

The resolution for HDTV varies depending on the manufacturer and the model number so you have to pay close attention to what is advertised and to what is written on the box or manual of the TV. You should always see if you can find the manual of the TV on the Internet or in person at the store and not rely on what the sales person says or what the store display says.

Here are the different resolutions of TV's: 480i , 480p, 720p, 1080i and 1080p.

What on earth do the numbers and letters mean? It's fairly simple, but a little explanation is needed.

Let's Cover the number portion first. The numbers are the lines of resolution that the television can display.

In 1941 a standard was developed for broadcasting video signals to televisions, this standard was called NTSC. The NTSC standard called for 525 lines of resolution, only of which 486 lines are actually visible. This up until the advent of HDTV was just known as a TV signal or standard TV. In the late 1980's a standard was developed for HDTV that called for 720 lines of resolution to show a much sharper image. Right around the same time another standard was being developed that had 1080 lines of resolution. Both types of resolution 720 and 1080 are considered high definition and both are gaining popularity in the United States with 30 percent of American households having one at this writing.

Quick Reference: 480 = 486 lines of resolution, developed in the 1940's, 720 = 720 lines of resolution, developed in the 1980's, 1080 = 1080 lines of resolution, developed in the 1980's. The letters behind the numbers are how the image is displayed, either interlaced (i) or progressive (p).

In the 1930's RCA engineer Randall C. Ballard invented interlace broadcasting. This allowed a TV signal to be broadcast without taking any more bandwidth. It does this by alternating every other line in a TV signal so that only half of the screen is shown at any one moment in time, the rest of the picture is sent immediatly afterwards. The principal works like this: The signal is broken in two parts, odd lines and even lines, these are known as fields. Each of the fields are broadcast separately. The picture then only consumes half of the bandwidth. Each field is sent so rapidly, that the human eye will perceive the image as one picture, not 2 fields. The phosphors in the TV will remain lit long enough for the alternate field to be filled in. This can be easily seen when you have a VCR on pause, the image will jitter, this is the interlace working.

In the 1980's the popularity of progressive scan started to take hold. Though developed early on in TV's, progressive scan required too much bandwidth to be broadcast at the time. Progressive scan sends all lines of resolution to the TV at once, allowing for a sharper image. Progressive scan also purports wide-screen.

Progressive scan certainly has an edge on Interlaced scan when it comes to showing a sharper image, however you must remember that at this time, broadcasters still transmit using Interlaced scan. Using a EDTV or HDTV to receive an Analog broadcast will not be any different than using a SDTV to pick up the same analog broadcast. The difference then lies in which type of signal you want to receive.

Analog Broadcast (broadcast and standard cable) = 480i = Compatable with SDTV, EDTV, HDTV
VHS = 480i = SDTV, EDTV, HDTV
DVD using composite = 480i = SDTV, EDTV, HDTV
Blu-Ray and HD-DVD composite = 480i = SDTV, EDTV, HDTV
DVD using S-Video = 480p = EDTV, HDTV
DVD using component or HDMI = 480p = EDTV, HDTV
Blu-Ray and HD-DVD component or HDMI = 720p, 1080i, 1080p = HDTV
HD Cable or satellite = 720p, 1080i, 1080p = HDTV

I hope that this article sheds a bit of light on the different standards of TV and their acronyms. I suggest getting the TV that meets your needs and not the needs of the sales person trying to sell you the TV. If you only plan on watching standard analog TV broadcast through cable or through the air waves for the life of the TV, the get a SDTV, just be sure that you can either add a converter so that you can watch digital TV in the future. If you want to watch standard DVD movies in their highest resolution, then a EDTV will meet your needs, but again make sure that you can add a converter to watch digital TV in the future. If you want to watch the best that TV technology has to offer now, then get a HDTV, but don't be too surprised by the price tag.

(C) 2007 Andrew Dansby

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Home Theater System - 3 Tips on How to Purchasing the Best Wireless Speakers

Don't you just hate it, all those wires tangled, no more having to tip toe and avoid tripping over, and plus no more jungle!

A decade ago all speakers were wired, but with today's technology speakers are now wireless and that is fantastic as you soon shall see.

You can place them virtually anywhere so long as the receiver can reach them.

It's a fact that for many years the electronics market is ever changing in terms of new products and technology coming in also prices lowering a slight degree.

Wireless speakers

Having come from no-where a few years back the technology has really received popularity to finally allow manufacturers to lower prices and perhaps finally these components are ripe for investment.

The price is still sizable in comparison but it will add much value and gives lots of entertainment value to you, also if you currently are fed up with your system, and its in dire need of an upgrade, then this option could be well suited for you.

Tip 1

Don't just rush off to the Internet and buy the first wireless speaker you see, as there are things to consider first.

As you have got to know the true quality of the wireless speaker and don't forget your receiver too.

Tip 2

So simply, go down to your local electronics store and have fun testing out the various options available.

Tip 3

Once that is done, then it time to go online.

Do this:

1. Find the best online price and compare with local stores price
2. Negotiate with local store and see if they will offer the same model for the same online price.

This way you can get better deals plus you don't pay the shipping charges.

Conclusion

Creating a home theater is all about creating atmosphere so you and your family get together and enjoy viewing television experience just like at the 'movies.'

Sound is a very important component that should be given careful consideration, get it wrong and the effect and be very dissatisfying.

Get the very best wireless speakers for your budget with the fullest amount of sound.

You work hard for your money and a home theater system is an investment that should provide you with hours and hours of enjoyment as well as a well deserved releases from life's pressures.

So, invest wisely, take great car to make the best possible investment for your money.

Robert Cacciatore is a publisher of Home Theater Entertainment Center where you will find information about home theaters, all in one entertainment centers, wireless equipment. Including how to prolong the life of your Home Theater system.

Home Theater System can be a great addition to you house providing you select the right one. The options and choices to make can be quite frustrating and need not happen to you if you have the right knowledge. You can attain the right knowledge by going to http://www.home-theater-entertainment-centers.com

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Fixing a Speaker Cabinet by Replacing a Home Theater Speaker

When it comes to great audio sound, there is no part of a home theater that is more overlooked that the speaker cabinet. It is the very last link in the sound chain and controls the final way you hear everything. The speaker cabinet reproduces the tone as sound waves in the air which creates the subtle differences in sound. What happens when you have a blown speaker in one of your cabinets? Do you fix it or just buy a new one?

Usually the answer to this question is a wholehearted yes, simply for the reason that those cabinets were built with your speakers in mind. That is what they designed for. Think about the amount of math and engineering that was involved in building the cabinets with a certain amount of air space in mind. These cabinets were tuned specifically for those old speakers. Installing other speakers in there will not sound the same as your old speakers.

Here is a simple step by step process how you can remove the bad speaker from the cabinet and repair it.

• Take the speaker cabinet you'll be working on and set it on its back to remove the speaker grille. Some grilles are different than others. Some simply pop into place, while others are secured in with screws visible from the side or front of the cabinet.
• Now that you have the grill removed, you'll next unscrew the first screw from the bad speaker, and then the screw opposite the first one. All of the screws need to be removed in an opposite pairs order.
• Now, carefully list the speaker out of the cabinet. It will still be connected by wires to the other speakers and the head unit. Some are attached by two wires while others by four. There should never come a time when you remove a speaker and there is only one wire. If this you see this is the case then you may be lucky and the speaker is just disconnected and not blown out.
• Now take those wires hanging out the back and pull them out of the speaker tabs using the plastic connectors. Never pull on the wire itself. You'll end up damaging it. Those tabs should be color coded to help you distinguish between the positive (red) and the negative (black) wires. If they aren't, then simply label them with a marker before you remove them. Be careful not to let the wires fall back inside the cabinet once they are removed by taping them to the sides.
• Double check that the removed speaker is in fact blown and dead by determining the resistance between the two positive and negative connection tabs. If you get a read out on the meter of less than an ohm or more than twice the impedance rating, you have yourself a bad speaker. If you get a reading between the two good zones, then there shouldn't be anything wrong with the speaker. One other way is to lightly press on the center of the speaker cone. The speaker is blown if it makes a scratchy sound or does not spring back to its original shape.
• Now that you have your new speaker ready to go, you'll need to reconnect the wires by pushing the connectors onto the matching tab. Set the speaker into the mounting hole and replace the screws in that same opposing pair fashion as used earlier.
• Lastly, you are going to tighten all those screws, replace the grille and return the speaker cabinet back to its upright position.

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Integrating Your iPod With a Home Theater System

Most people who own iPods have found that this hugely popular product is almost indispensable to them as they go about their daily routine. The ability to enjoy music wherever you happen to be can be quite addictive. It has become popular to integrate home theater systems with the iPod in order to take advantage of the high quality audio and video that these systems are noted for, and to give the ears a break from the ubiquitous earbuds that sometimes seem permanently implanted in our zeal to entertain ourselves!

iPods play well with home theater systems. Anything that the iPod's hard drive contains can be shared with friends and family. The new fifth generation iPod, which is capable of displaying videos and photos, works especially well. Music videos downloaded from Apple's iTunes look and sound great, and favorite photos you may have added to your iPod show up beautifully on a large screen television. Even the older iPods which contain music only will give you double the enjoyment when paired with your home theater system. All your playlists and favorites can be quickly and easily accessed for your listening pleasure. Any audio enhancements you system contains, such as Dolby Pro Logic II, will work with the songs on your iPod to create a sound quality you just cannot get from an iPod alone.

To harness the power of your home theater system, you will need what is known as an audio/video dock for the iPod. This device will blend in with your existing system and bridge the two units together, enabling you to get maximum enjoyment out of each component. Once connected, the iPod is controllable with the home theater system's remote. You can view the tracks included on your iPod playlists via the receiver of your home system. Now, it is easy to enjoy your digital music that you have stored on your iPod. With just the touch of a button, your home can be filled with music of the highest fidelity. The dock also charges your iPod while it is connected, which is a real time-saver.

You can find these audio/video docks both online and in retail stores, making it easy to turn your iPod into a home music server and add extra enjoyment to your home theater system.

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Correct Surround Sound Setup Info

If you are in the market for a new surround sound system I am quite sure that you were a bit taken aback by all the options, bells, whistles, gadgets, gadgets, and price tags in the market today. Trust me, you are not alone. One of the most disconcerting things to many potential consumers is surround system where on earth should you put all the speakers. I intend to answer that question and a few others over the next few paragraphs, and we hope that you read along.

The first thing to understand is that there are several different types of surround sound systems. The industry standard and the most common is the 5.1 channel surround system. This structure requires the use of five speakers plus a subwoofer in addition to the receiver. The five speakers are the front speakers that include a left, right and center and the left and right speaker surround that are located to the left and right from the rear. You should also have a cabinet behind you to create "notes bass' sound. The next two types of surround sound systems include 6.1-channel and 7.1-channel system. Foremost among these differences are the adding an additional speaker for each of them.

You will be pleased to know that most of the receivers have adapted to 8 totals speakers of a 7.1 surround sound system, but you should check to be sure that you can upgrade if you choose to buy a 5.1 channel system for the time. The addition of speakers when you upgrade change the layout of the speakers in the house. Speakers more you have, the more noise that you enjoy, however, the better the quality of your stakeholders, improving the sound quality of your aura. In other words do not go with speakers of inferior quality in the beginning in order to have more speakers, as you shoot the quality of sound you can experience in the foot. It is better to buy less of speakers at the beginning and add to your system over time in order to obtain a better quality.

When it comes to the location of additional speakers if you upgrade to version 6.1 channel surround system, you move the speakers currently in the left and right rear left and right and place the new president, in the center back. If you go to 7, 1 channel surround system you move the speaker who is in the center of the left rear and location of the new speaker on the rear right. This allows you to be literally surrounded by his order to maximize your experience.

Of course, this is only a recommendation, and it is entirely up to you what will work best in your home and suit your needs and wants in a surround sound system. Not everyone knows the music or the sound and even experience for each vary greatly from one person to another. For this reason, it's also a good idea to make sure you have listened to the system in a store before deciding on one and the house. This is a wise decision independently. I also recommend taking more than one CD or DVD for the listening process in order to ensure the quality is consistent across different mediums.

Even if your system's configuration is very important for the experience, it is quite difficult provided you follow the instructions (you do not forget to read you?). Whether it's your first home theater or surround sound system or one of many improvements you made along the way, I am sure you will agree that the sound is far superior to the two systems High Speakers of days not so long ago.

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How To Set Up Your Home Music Studio

Many music enthusiasts like to set up their own music recording studio. They might want to do that for their own convenience, as a hobby or to monitor their own practices. Whatever the reason may be, setting up a recording studio at home does need enough patience and determination to overcome the glitches that are bound to make the whole process somewhat complicated. The following information could be handy in starting with your own set up at home.

First of all you have to think about the purchase of equipments for your home studio. This step is generally the least daunting of the entire process. Thanks to the intense competition in this market, you will easily get most of the equipments on discounts. You should always try to check out how well the equipments are working in order to avoid any unpleasant surprises at home. You could also try the trial period offer and return the goods if they are not to your liking.

You could try to buy these goods second hand as used equipments are perfect for the first home recording studio setting - the equipments will be very cheap and you will be able to learn and improvise before trying for the brand new costlier ones. Naturally, you will have to be careful when dealing with such transactions, but if you are savvy enough, you will get some good equipment from auction sites like e bay. Try not to buy equipments that are too old as electronic goods tend to have a limited life span. You should also check all the switches and other parts for wear and tear. Too loose parts can signal the poor condition of the recording equipments.

You could look at the manual to get an idea of how worn out the studio equipments are. Ideally, the whole set of equipments must be cleaned and set to appropriate levels for optimum recordings. Again, if you are purchasing them from overseas, you may have to be careful about the voltage levels as different countries follow different standards. So always check with your seller and also check every instruction in the manual before plugging in .You would not want your costly purchase to be destroyed due to a minor oversight.

Once the purchase is successfully made, you can look into the manual for the exact settings needed to ensure the optimum working conditions for the studio. You have to set the correct level of the signal in order to prevent any unnecessary loud noises during home recordings. Noise is a common problem in home recording studios and you must try to minimize it as much as possible. Every device can be a culprit in noise creation, leading to distortions. Since it is impossible to turn off all the noise, the best you can do is set the desired signal at the correct level.

Hence, with a little money and a lot of determination, you can start your own recordings in the comfort of your home. Just remember to consult the technical books as well as the experts before starting any such venture.

The author has set up music recording equipment in her room. With the help of audio editing software, she manages to add audio effects and play around with her recordings. You can do a lot with a home recording studio without spending much.

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DVD Players - Affordable Technology For Home Entertainment

Nothing was as great a move forward in technology in the home entertainment area as the dvd-players were. The home movie viewing public had been so used to VHS that the features the DVD players brought were revolutionary! And that came at a higher cost, but most thought it was well worth it. And that was the end of the VHS moment in time, we now had a new piece of technology to be excited about.

The new dvd-players appeal to customers by offering them exciting extra features. Besides the movie, the video discs often contain bonus material. This often consists of deleted scenes, interviews with the actors, and trivia related to the movie. Occasionally, there may even be an alternate ending to the film.

Like always with new technologies, this one has some problems as well. Discs can be easily scratched if they are not taken care properly. Nothing is more horrible than watching a favourite DVD only to find out that a main scene in the movie freezes or pauses. It is a tragedy.

One of the recent technological advances that have hit the home entertainment market was the ability of burning or recording capability on DVDs. Persons have burnt/recorded their favorite home movies in a DVD and share them with others. A large number of dvd players recorders with varying features are available in the market. However, the most popular brand was the denon hdmi dvd player.

The dvd-players keep moving forward with technology. There has also been the addition of a selection of high definition DVDs to hit the market. These allow for people who are at the tip of technology to keep expanding their DVD collection. They are able to watch movies that are crisp, clear and show off their home entertainment systems.

In todays world home movie viewing has reached new heights. Today we can rent a DVD through various ways including e mail and it comes without any trouble. You can find DVD's at local stores also now, and not only in big specialty stores. Also the DVD players have become cheap and everyone can now afford one.

The introduction of DVD-players to the market came with many features over the VHS player/recorders. Videos for these players usually include extra footage, deleted scenes, interviews, and other additional material. The introduction of hdmi capable players, such as the denon hdmi DVD player, was even more exciting, adding the ability to watch higher quality all digital content. However, people still needed their VHS players because of their ability to record. That changed when the DVD players recorders were released, as consumers could now record their favorite television programs, just as they did on VHS tape.

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Home Theater Projectors - Buying Tips

The whole point of having a home theater system is to produce the movie theater experience, and if you are a lover of sports programs and DVD movies then having a home theater projector can only enhance that cinema experience at your home.

The problem with projectors is if you have limited space than I would not recommend purchasing a home theater projector. However, assuming you do have the space, one in your home will give you as close to the big screen entertainment as possible.

In today's marketplace there 3 major types of projectors which be:

Cathode Ray Tube (CRT)

Digital Light Processing (DLP)

Liquid Crystal Display (LCD)

CRT is a more practical as it has a long projection life - you should expect CRT to last for 20,000 hours and compared to its equivalent which can last between 1,000 to 2,000 hours. It does however take up ample room. If space is limited, LCD may be more sensible choice, as it is compact while DLP is actually not limited to theaters and is sometimes used for movies as well.

Here are some particulars on home theater projectors to look out for:

1. Brightness, depending on your room size, determine the amount of brightness needed for your projector, aim for at least 1,000 ANSI lumens.
2. Color contrast, a contrast ratio of 2,000:1 or higher will provide the best color contrast for your movies.
3. Pixel density, a high native pixel will be most beneficial.

Choosing a home theater projector depends on your space, if you have lots of room then CRT is a good choice, but its also about getting the combination of qualities and characteristics what you expect from producing high quality viewing.

Relying on what is said about a particular product is inadequate, test the system and compare with other systems and ask the sale person for any free trials.

Robert Cacciatore is a publisher of Home Theater Entertainment Center where you will find information about home theaters, all in one entertainment centers, wireless equipment including how to prolong the life of your Home Theater system.

A Home Theater System can be a great addition to you house providing you select the right one. The options and choices you make can be quite frustrating and need not happen to you if you have the right knowledge. You can attain the right knowledge by going to http://www.home-theater-entertainment-centers.com

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Home Theater Cables - How to Best Hide Speaker Cables

For most people with a home theater system installed in their house, the cables are one of the biggest logistical challenges. The cords and cables for all the various components inevitably become a tangled, jumbled mess, making it nearly impossible to change the configuration of your system or any of the components. Most families don't put in the time to organize and hide their cables to improve the aesthetics and safety of the home theater room. With just a few simple changes, your home theater cabling mess can be easily cleaned up and put under control.

All of the components in the home theater system have a power cord that must find its way to a wall socket, surge protector or power strip. To keep the power cords neat and tidy, use a label machine to identify the cord before you plug your home theater components in. This will help when you need to know which plug to pull to move your speaker system or to replace your DVD player.

To clean up the knots and clutter caused by the constant wrapping and unwrapping of cables around each other, start by unplugging everything, including the cables that connect each component to the others, and separate them out. Figure out exactly where you want each component to go, and then set them up again and neatly run the cables without twisting them around each other. You may need to write down reminders for where everything goes if you are not accustomed to setting up the theater. Use twist ties or zip ties to the cables every foot or so when there is more than one cable running in the same direction to keep them from becoming tangled and out of control. This same organization can be applied to the power cords that lead to the same power outlet.

If your home theater is set-up such that some of the cabling must come out from behind an entertainment cabinet or floor speakers, it is recommended that some sort of cable hide be used to ensure that these cables do not become snagged by people walking by or grabbed by small children or pets. To keep power cords out of view and safe from tampering, use a cable hide designed to run along the wall and keep your cables protected and covered. These cable hides can be great for anywhere that your cables hang out in the open. If you are building your home theater from scratch, you can ask the installer to build the cabling into the wall or molding of the room in much the same fashion. You will not have to worry about tripping hazards or about your new puppy chewing through your power cables if the cords are neatly hidden and out of the way.

Your home theater speakers provide another potential problem, since you might want speakers around the room with speaker cables becoming a huge problem. To keep this problem down, the best option, though complicated, is to run the wiring for the speakers through the walls. This prevents them from dangling or getting in the way, and if you have the necessary tools and skills, you can run your speakers just about anywhere in the room.

Cleaning up home theater cabling does not have to be a chore. With some simple changes and proper storage, you can have a clean looking, safe home theater room for your family.

~ Ben Anton, 2007

Ben Anton lives in the Northwest and writes for Ronny's 5th St. Audio Vision.
Ben Anton invites you to find out more about quality home theater cable hides and their usage at our Oregon home theater design retail web site and store.

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Plasma Television Life Span - Why You Shouldn't Worry About I

Though there are varying opinions, the general consensus is that plasma televisions do have a long life span. Because a television set with a flat screen is generally a bit more expensive than other television sets, its life span is generally used as a justification for the added expense.

These televisions also provide a clearer image which makes this investment a sound one for a person's television viewing pleasure.

When people begin to ponder the possibility of adding a plasma type television to their collection of electronics, they will typically wonder what the average life span is.

Plasma televisions deliver clearer, more pronounced images than an LCD television screen and tend to last just as long. The average person only watches a couple of hours of television a day and that means it can last up to ten years if you only watch eighty hours of television a week.

Early versions of today's plasma technology were not economically or environmentally efficient. These older versions ran quite hot and a person would not be able to hear over their cooling fans. When the pricing is considered first before how long it lasts is considered, most people will not take the time to investigate further.

However, should a person consider the average use time, and not be the type to watch more than a couple hours a night, they will tend to take their checkbooks or credit cards out and purchase one as soon as they can afford one.

Nowadays, the average plasma TV's life span is just as impressive as the picture. Due to the advance in technology, and the fact that new models do not burn quite as hot, the picture is clear and crisp.

For people who like to simply watch a film every now and again, or the news while they are getting ready for work or bed, this will be a wise investment.

Models can be hung on walls, or set on special stands that are built for flat screen televisions. The fact that they are space saving is sometimes used to justify the purchase, but all in all; there's quite a few good reasons to consider a plasma television.

When purchasing a plasma type television set, the plasma television life span should be taken into consideration. Most will last a very long time with extended viewing so you should not be worried that your investment will not be worth it.

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