The acronym HDMI stands for High Definition Multimedia Interface. This is the most advanced audiovisual transmission method commercially available at this time. The technology transmits audio and video signals in their original digital form at the speed of up to 10 gigabytes per second. This technology was first introduced in the year 2002 and has since then undergone several official upgrades. These upgrades are HDMI 1.0, HDMI 1.1, HDMI 1.2, HDMI 1.2a, HDMI 1.3 and HDMI 1.4. Out of these upgrades, HDMI 1.4 is the latest version of the original technology.
What exactly is a High Definition Multimedia Interface?
The interface is provided by the HDMI cables. These cables have 19 sub cables inside them. The bandwidth of this cable for digital data transmission is twice of what is even required today. The cable can accommodate up to 8 audio channels.
As mentioned above, the latest version of these HDMI cables is called HDMI 1.4. This new cable is able to accommodate advances in network capacities, improvement in resolution and automotive connections. The HDMI LLC licensing website offers a downloadable version of the full specifications of HDMI 1.4.
What are the new developments?
HDMI 1.4 offers Ethernet connectivity for internet sharing to other HDMI devices without the need of another cable. The new ‘Audio Return’ channel has reduced the number of cables required for audio transmission between source and HDMI device.
Better 3D support
The HDMI 1.4 cable standardises the I/O part of the system to support 3D formats better. You can get resolutions of 1080p on a dual stream. This enables you to have a common format and resolution level for all 3D content.
HDMI cables are audio/digital cables that provide a digital connection between your HDTV and other audio/video systems like cable box, DVD players and home cinema systems. These cables come in different versions and wire lengths. They are capable of transmitting uncompressed audio and video data.
Due to a number of advantages that HDMI cables offer, they are now used as an efficient alternative over composite video, VGA, D-terminal video and radio frequency coaxial cable. A proper match of quality cable will provide you with unmatched output and feel of home theatre.
Many people get confused when making a choice between component cables and HDMI cables. While both cables are widely used with home entertainment systems, it is better to go for the right one.
Innovative features of HDMI cables
Unlike the component cables, HDMI cables can transmit audio and video signals using a single cable. They are specially designed to offer uninterrupted signal connectivity along with durability. Gold coated HDMI cables are also available in the market. These cables are known to improve the performance of high-definition audio-video transmissions.
HDMI cables can support any video format from your PC or TV. The cost of these cables often varies depending on their grade and version. As HDMI cables can carry both audio and video signals, the need of having different connectivity cables is completely eliminated. If you still connect your PlayStation, Xbox 360 or a Blu-ray player with the traditional component cables, use HDMI cables and experience the difference.
An HDMI Switch box is a device that allows you to switch HDMI routes between sources. An HDMi switch box allows you to switch between high definition video and digital audio signals. A common HDMI switch box would allow this between 4 sources by accommodating simultaneous connections of up to 3 high definition video sources.
An HDMI switch box will often come with a remote.
A word of warning regarding HDMI switch boxes is that incorrect usage could manifest in resetting / restarting both devices, or at worst, cause damage to the devices. Hot Plug action is therefore not recommended and it’s best to ensure that both input and output devices are switched off when plugging or unplugging HDMI cables.
HDMI stands for high definition multimedia interface. It is a compact interface for transmission of uncompressed digital information. There are many different kinds of cables available for HDMI connections. Here we shall discuss the features of long HDMI cables.
Long HDMI transmission cables
Long HDMI cables can connect devices over a distance of 50 feet. The market has HDMI cables available which are tested to perform well at distances of 50 to 100 feet with 1080p. An equalizer may be required for enhancing the signal for such distances. The best way to see if it works well or not is to simply connect your devices and check the performance yourself. Every device may not be able to transmit signals over such distances without signal boosters. Sometimes, two different cables of the same specifications from one manufacturer may also perform differently.
What to look for
If the cable is capable of long distance transmission even a 100 foot cable would work perfectly fine without the help of a signal booster. Long distance HDMI cables which are unable to perform will have obvious signs. The images will be distorted and pixilated. It may happen that the cable simply does not transmit any image at all. Sound will work but the video will be sluggish.
If this happens try to get a replacement from the seller try the diagnostics again. Buy a signal booster for the cable and try a slightly shorter cable. There are HDMI cable equalizers available in the market. These equalizers preserve the strength of the signal. They will boost the quality and remove the disturbances, interferences etc. A certain amount of trial and error may solve your problem.
HDMI is the acronym for high definition multimedia interface. It is actually a description of what the HDMI cable is used for. The cable provides the interface for high speed transmission of audio and video. The cable is used with audiovisual equipment such as HD televisions and Blu-ray DVD players. It looks similar to a USB cable, except for the fact that 19 individual wires are wrapped inside it.
HDMI cables are capable of transmitting 10.2 gigabytes per second. This is twice the normal bandwidth necessary for transmission of audio and video signals. HDMI is the only one mode which provides clean and uncompressed digital information. The other methods are analog.
What makes HDMI so special?
Analog signal transmission picks up digital data from a source and transmits it after converting it to analog data which is again converted to digital, before being displayed on screen. This triple conversion of the data causes it to break and the resultant final display of audiovisual signals is not clean. It has disturbances and is of lower quality than original signal. The HDMI cable keeps the original digital signal intact and eliminates the need for conversion. It gives you the clearest, sharpest images and audio.
HDMI cables are available in different versions such as HDMI 1.0, HDMI 1.1, HDMI 1.2, HDMI 1.2a, HDMI 1.3 and HDMI 1.4 etc. They all look identical and have the same connectors. Each newer version can accommodate data transmission of the lower levels. This means that you will not go wrong if you buy the HDMI cable of the latest version. All your equipment will work well, no matter what version of the HDMI cable you use.
Any older audio/video equipment you have will work together with any newer equipment regardless of which HDMI cable version you use.
HDMI stands for high definition multimedia interface, which is the new face of the evolving technology in entertainment. HDMI cable is a single cable unlike your normal A/V cable which is a pair of two cables for audio and video functionalities. This innovative HD accessory is pivotal and a necessity when it comes to providing high definition video and audio signals between your HD compatible devices.
The HDMI cable is built to deliver high performance for your TV and sound systems. Any chances of playback or operation issues are rare. Here we guide you as to how you can go about checking you HDMI cables in case of any problems. It is better to perform some minor steps to check what is causing the error rather than buying a new HDMI cable.
Steps to check your HDMI cable
Check the connections first to make sure that the HDMI cable is inserted properly at both the ends. Incorrect connections will cause disconnection between the signals reaching the TV set. Next, you need to examine the metal connectors of the HDMI cable. Unplug the ends of the cable from the devices and check for any dirt deposited in them.
Wipe the cable ends with a damp piece of cloth and allow the cable to dry before plugging it back in. Use a vacuum cleaner to blow compressed air into the HDMI ports of your devices to get rid of any debris or dust gathered there. Also try using any alternative HDMI port or outlet on your devices.
HDMI is now a standard audio video interface for transmitting digital data between HDTVs and other high definition devices. As HDMI is able to transmit uncompressed digital data, the HDTV gets all-digital, crystal-clear audio video signal through a single cable.
Different versions of HDMI technology
The HDMI cable comes in different versions. Version 1.4 is, however, the latest and the most updated specification that incorporates an Ethernet channel. The newest version of the HDMI cable is compatible with IP equipment. The version 1.4 also supports 3D with resolutions of up to 4096 X 2160. Newer HDMI cable versions are completely backward compatible with earlier versions.
How to select an HDMI cable
When looking for HDMI cables, you will come across two different types – high-speed and standard. Both can be used with 780p and 1080i devices. The high-speed HDMI cables can also be used with 1080p devices like PS3 gaming consoles and Blu-ray players. When purchasing HDMI cables, there are some important things you need to consider.
The length of cable, your budget and the audio-visual equipment you want to connect your HDTV with, are some important points to consider. The material and build quality of HDMI cable also affects the overall length.
Ideally, it is best to use a 7.5M long HDMI cable without losing quality. In case you want to extend the cable length, it will be wise to use amplifiers. They are a great way to increase signal quality without it deteriorating.
HDMI has now become a standard digital audio-video cable for connecting HDTVs with other audio-visual equipment. They have all connections integrated into a single cable. Unlike traditional connectivity options, HDMI cables greatly improve digital audio-video performance.
Due to the numerous advantages that HDMI offers, it has become an industry-supported specification. As the industry required a quality digital connection standard, the consumer electronics manufacturers decided to have a standard that would benefit both the consumer and the industry.
DVI or digital visual interface was the connectivity standard used previously. Effectively, HDMI is an enhanced version of DVI. In fact, HDMI specifications have been built on the DVI standards. An HDMI connector is also backward compatible with a DVI video input.
How HDMI cables are different
The HDMI cable incorporates all video signals. The earlier component cables included RGB (red, green, black) signals, while the component video or S-Video only carried video signals – audio signals were handled separately.
HDMI allows two-way communication between components. For instance, your HDTV can determine whether the picture from signal source is 4:3 or 16:9. This also allows the HDMI compatible unit to be controlled using a single remote control. So, when you push the play button of your Blu-ray player, it will start the HDTV, DVD playback and other audio components as well.
High definition multimedia interface (HDMI) is a standard used for audiovisual devices such as high definition audio systems, HD televisions etc. HDMI cables look similar to USB cables, except for the fact that they conceal 19 wires inside them which have the power to collectively transmit 5 gigabytes of audio visual data per second.
In recent times, the demand for HDMI cables has risen. Here we have discussed the important factors that need to be remembered before buying the right HDMI cable.
HDMI cables – specifications and uses
You will need to know all the details of your device and its HDMI cable specifications. There are two levels of HDMI cables in general. They are Category I and Category II. Category I cables are standard HDMI cables and the Category II cables are high speed cables.
All HDMI cables support television and other video devices and are capable of supporting eight different audio channels. These high definition multimedia interface cables are extensively used in gaming and almost every game console makes use of them.
You may require longer HDMI cables for connecting devices across distances. These cables may not necessarily have the power to transmit signals across such long distances. To aid them you may need to buy signal boosters and equalisers. The boosters will push the signal across the cable and the equalisers work on eliminating interference and maintaining image and audio quality
HDMI (high definition multimedia interface) was introduced to help people transmit data from storage units to display devices with ease. These cables allow for the transfer of high quality audio and video.
HDMI version 1.4
The fourth edition of HDMI was released on 28th May 2009. Version 1.4 supports resolutions as high as 3840×2160p at 24 Hz, 25 Hz and 30 Hz and 4096×2160p at 24 Hz. The HDMI Ethernet channel supports data transfer of 100 Mb/s between two devices connected by the cable. However, it should be noted that some of the 1.3 devices might not be compatible with 1.4.
Features of HDMI v1.4
The new micro HDMI connector supports colour spaces with the addition of sYCC601 and Adobe RGB. New features include support for stereoscopic 3D formats, 2D depth graphics and frame packing. Resolutions as high as 720p60, 1080p25, and 720p66 are supported by the new HDMI 1.4 cable.
Comparison with other versions
HDMI 1.4 boasts a maximum clock rate of 340 MHz as compared to 165 MHz for 1.2 and 1.2a. Apart from this, it also supports data transfer of 3.40 Gbps compared to the 1.65 of 1.2. Although the maximum audio throughput in 1.3 and 1.4 is the same (36.86 Mbit/s), the latter is more efficient.
The aforementioned features, uses and benefits of HDMI v1.4 will ensure that you transfer your data at a high speed without any quality issues.