Understanding HDMI
What is HDMI?
HDMI or High-Definition Multimedia Interface is the first and only industry-supported, all-digital audio / interface for data transmission of uncompressed digital video. As an alternative to standard analog consumer connects HDMI digital audio / video sources such as PC, Blu-ray, audio-video receivers, video game consoles and DVD cases – to compatible devices. On a single HDMI cable is compatible with any PC or TV video format with up to 8 channels of pristine digital audio.
Today, more than 700 companies in the consumer electronics division will be adopted and implemented have new versions of the HDMI specification.
Benefits
Image Quality: Compared to other connections, HDMI offers picture quality that is now available. It can handle the high-definition video up to 1080p resolution at 60 frames per second, which is the format of the most intensive bandwidth video currently available on the market.
Audio quality: In addition to superior image quality, easy to handle HMDI, even the highest resolution such as audio Dolby TrueHD and DTS-HD Master Audio. It supports up to eight audio channels with 24 kHz bit 192nd The only connection type that can deliver the same quality are multichannel analog audio cable channels, but you need to run up to eight separate lines, just to get the same quality.
Intelligence: Added more intelligence into an entertainment system at home, it is more efficient and easier to use. With HDMI interface enables new features like a game of touch and automatic configuration. A game allows users to touch on all the devices are for playback by pressing a single button.
Ease of use: HDMI is a single cable, which generally take several cables. Finally, the cost of HDMI, eliminating confusion and complexity of multiple son. These functions are particularly useful when you upgrade or add equipment.
HDMI & Entertainment Systems
The specific arrangements affect the HDMI interface, as we are with our components in the set-up. Because an HDMI cable can replace several analog cables, the process of setting up home theater systems greatly simplified. Because two-way communication capabilities, components that are connected via HDMI constantly talk to each other in the background so that the content is best delivered in the format without user intervention lot.
HDMI Cable
The standard DVI cables were originally developed for PC using an HDMI cable designed specifically for consumer electronics such as DVD players, digital TVs. Manufacturers began to produce both standard and high-speed HDMI cable. Standard cable typically at speeds of 75 MHz runs, over a broadband cable typically at a speed of 340MHz. The HDMI standard, two other important channels: CEC (Consumer Electronics Control Channel) and DDC (Display Data Channel).
Uses the HDMI CEC feature two-way communications for remote control enables individual, such as touch-games already mentioned. Since the CEC is an option that consumers do not have to look at the product-feature list.
HDMI technology has been designed to use standard copper cable construction at long. However, the signal strength tends to deteriorate over long cables. The maximum cable length recommended is about 33 meters.
Tips
Note that if you connect to a DVI-enabled device that does not support HDCP, then a DVI port on your path to an HDMI connector is the power of HDMI-enabled device to downgrade the high definition video content at standard resolution.
When you buy an HDMI cable is included in the price is not necessarily a role in your decision. A $ 10 generally, cables probably as good as his counterpart at $ 50.
HDMI cables can have two types of connections: a compact connector type A 19 pin, and a slightly larger 29-pin-B are HDMI port. The second allows making use of the configuration dual HDMI connection, which doubles the maximum transfer rate.
Later versions of the HDMI technology supports for the one-bit audio formats Super Audio CD (SACD) use Direct Stream Digital.
FAQs
How much bandwidth do you need? The bandwidth for a specific resolution is required, governed by the discount rate and removal of the monitor. The following formula is used to calculate the specific bandwidth:
Bytes = refresh rate resolution X x [1 + Blanking Period] bps
(When the punching cycle is the sum of horizontal and vertical intervals of deletion)
For example, we consider the highest standard of HDTV sets today: HDTV 1080p 60Hz video signal with an interval of 16% of all shearing. This means that the bandwidth required for 1920 x 1080 x 60 x [pixels equivalent to 1 +, 16] = 144.4MHz or 144.4 million / sec
Are the new HDMI versions compatible with earlier versions? Yes, all HDMI versions are fully backwards compatible with previous versions, including DVI-enabled devices.
Can I use my existing HDMI version? From now on, it is not possible to update. If such changes were possible in the future, it would be directly by the manufacturer.
