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[H118]Hdmi 1.3 To Dvi

by Jeff Su, Jef

The transition from analog to digital in the video world has been quick and a key enabler of this has been HDMI, High Definition Multimedia Interface. Virtually all HD equipment utilizes HDMI to transport audio/video from the sources to the display. The original rendition of HDMI, HDMI 1.0 was released back in 2002 and has been the de facto standard for HD Video transmission. As the digital revolution has continued, HDMI has also evolved from 1.0, 1.1, 1.2 and mostly recently HDMI 1.3.

Revision History:

HDMI 1.0 -Single-cable digital audio/video connection with a maximum bit rate of 4.9 Gbps. Supports up to 165Mpixels/s video (1080p60 Hz or UXGA) and 8-channel/192 kHz/24-bit audio.

HDMI 1.1 - Added support for DVD audio

HDMI 1.2 -Added support for One Bit Audio, used on Super Audio CDs, up to 8 channels. Ability for PC sources to use native RGB color-space while retaining the option to support the YCbCr CE color space.

HDMI 1.3- Increases single-link bandwidth to 340 MHz (10.2 Gbps)

- Optionally supports 30-bit, 36-bit, and 48-bit xvYCC with Deep Color or over one billion colors, up from 24-bit sRGB or YCbCr in previous versions.

- Incorporates automatic audio syncing (lip sync) capability.

- Supports output of Dolby TrueHD and DTS-HD Master Audio streams for external decoding by AV receivers.

- Availability of a new mini connector for devices such as camcorders.

Do I need HDMI 1.3:

You will still get incredible HD picture quality with HDMI 1.1 and HDMI 1.2. HDMI 1.3 is backwards compatible with previous versions of HDMI. Getting HDMI 1.3 display and HDMI sources will enable you to take advantage of the extra feature enhancements available. If you are in the market for a new HDTV, then it would be advisable to get one with HDMI 1.3 support. However, you should look for the specific features that are supported.

HDMI 1.3 – what is different:

On the physical layer level, all HDMI versions utilize Transmission Minimized Differential Signaling, TMDS and the physical connector looks identical. The major enhancements of HDMI 1.3 are:

Expanded Data Rate Support

HDMI 1.2 supports aggregate data rate of 4.95 Gbps.

In order to ensure that HDMI is the connectivity of the future, HDMI 1.3 has provisions to eventually double the bandwidth from 4.95 Gbps to 10.2 Gbps. For comparative purpose, USB 2.0 has a maximum data transfer rate of 480 Mbps, 1/20 of the data rate of HDMI 1.3.

Although, HDMI 1.3 has provision for up to 10.2Gbps, the transition will be gradual with the first devices available to achieve 6.75Gbps initially.

Deeper Color and higher resolution

The increased bandwidth in HDMI 1.3 enables higher display resolutions beyond the typical 1920x1080P resolution and improved color depth. For example, HDMI 1.2 allows 8 bits/ pixel to be allocated for color information. In version 1.3, HDMI has provisions to support 10, 12 and 16 bit color/ pixel thus allowing for even improvement in picture quality.

Lip Synch Correction

The modern HDTV performs complex digital processing to the incoming video signal such as de-interlacing, format conversion, noise reduction and etc. The digital video processing takes finite time to execute and must be synchronized with the audio portion of the incoming signal to ensure that both video and audio are synchronized and no delay is perceived. Most HDTV have compensation to ensure that the audio and video are properly synchronized However, many consumers will likely process the audio separately in a surround sound system. HDMI 1.3's lip synch feature allows the audio and video signal to be synchronized to external HDMI devices.

Mini Connector

HDMI 1.3 has also added an optional mini HDMI connectors so handheld HD video devices such as HD video cameras can also utilize HDMI for HD connectivity.

What is still the same

HDMI 1.3 is fully backwards compatible with previous versions of HDMI. So if your display supports 1.2 and your source is 1.3 capable. The source and display will arbitrate for the best available format. HDCP, although not required by HDMI 1.3, still enables HDCP to be implemented over the HDMI interface.

The HDMI 1.3 cable is the newest version of the multiple multimedia interface cable that can be used to connect a number of electronic devices into the same interface. Compared to past models of the cable, which have changed relatively little compared to their predecessors, the 1.3 version has an array of new features that makes it the most adaptable of the bunch. But just what are the real benefits of using the HDMI 1.3 cable compared to the others? You would be surprised, I'm sure, to learn of all the ways that this new version will expand your multimedia interface and make it easier for you to combine your electronics.

To understand how this HDMI cable is going to help you, let's first talk about Digital Visual Interface (DVI). This is an uncompressed digital connection scheme that was actually originally developed for a network of personal computers. It was to be a low-cost, high-bandwidth digital connection between PCs and digital monitors, so that you could view your work on the best of television sets. Now it is the most widely used digital display interface in the computer industry. What does all this mean for your home theater system? Well, it means that you can include the DVI with it, especially by using DVI connections on projectors, monitors, and advanced DVD players, such as the new HD-DVD players.

HDMI cables come in when you want to hook up a High Definition Multimedia Interface (HDMI) system with that of a DVI. HDMI cables can carry video, audio, and inter-component operability commands (remote control signals) on one digital interface that has been built on the success of DVI. When a device is connected to an HDMI 1.3 cable, it gets all the video performance that DVI has to offer, up to and including 1080p.

Compared with your standard A/V interfaces, HDMI interfaces actually have a number of important advantages. The uncompressed format delivers digital HD video, multi-channel audio, and control signals between various HDMI and/or DVI components. By combining all this power into one cable, HDMI offers a convenient connection alternative to the maze of existing analog A/V cables that plague your home theater.

The HDMI 1.3 cable actually offers six distinct benefits to the HDMI world. The most obvious is the higher data transfer speed that it offers. It also supports a special format type known as Deep Color. This is the brand new color space used in video electronics. It can support 1.8 times as many colors as RGB (Red, green, blue color schemes), which helps it to show all the various colors found in nature. Incorporating automatic audio syncing capability is also a new feature for the HDMI 1.3 cable. This system will automatically adjust for the difference in electronic latency between the processing circuits of the sound and the image. This discrepancy usually comes up as a slight delay in sound and image correspondence, but it will be unnoticeable thanks to this new cable version.

In addition to all of this, the HDMI 1.3 supports the output of Dolby TrueHD and DTS-FD Master Audio streams. These are the lossless audio codec formats used on HD DVDs and Blue-ray discs. The cable is only useful here if the DVD player can't send information in an uncompressed format, though. The HDMI 1.3 can be used with a number of products, including the latest DVD players and the Playstation 3, which you may be interested to know, is the first product on the market that uses a HDMI 1.3 wire connection.

So if you're looking for the best connectivity possible, look into purchasing the HDMI 1.3 cable. The benefits HDMI 1.3 provides your home theater wiring set-up can't be beat, and you'll soon find yourself able to transfer data like never before.

~Ben Anton, 2007

Article Source : Pg. 270

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Both Jeff Su & Ben Anton are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.

Jeff Su has sinced written about articles on various topics from Computers and The Internet, Site Promotion and Computers and The Internet. . Jeff Su's top article generates over 12100 views. to your Favourites.

Ben Anton has sinced written about articles on various topics from Software, Home and Writing. Ben Anton invites you to find out more about usage at our. Ben Anton's top article generates over 1220000 views. to your Favourites.