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HDMI FAQ

1.What is HDMI?

HDMI (High-Definition Multimedia Interface) is a proprietary audio/video interface for transferring uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for analog video standards.


2.What is HDMI 2.0?

HDMI 2.0, which is backwards compatible with earlier versions of the HDMI specification, significantly increases bandwidth up to 18Gbps and adds key enhancements to support market requirements for enhancing the consumer video and audio experience.


3.What’s new in HDMI 2.0?

HDMI 2.0 significantly increases bandwidth to 18Gbps and includes the following advanced features:

(1)Resolutions up to 4K@50/60 (2160p), which is 4 times the clarity of 1080p/60 video resolution, for the ultimate video experience

(2)Up to 32 audio channels for a multi-dimensional immersive audio experience

(3)Up to 1536kHz audio sample frequency for the highest audio fidelity

(4)Simultaneous delivery of dual video streams to multiple users on the same screen

(5)Simultaneous delivery of multi-stream audio to multiple users (Up to 4)

(6)Support for the wide angle theatrical 21:9 video aspect ratio

(7)Dynamic synchronization of video and audio streams

(8)CEC extensions provide more expanded command and control of consumer electronics devices through a single control point


4.Is HDMI 2.0 backwards compatible with HDMI 1.x?

Yes, all HDMI versions are fully backward compatible with all previous versions.


5.What is the difference between DVI and HDMI?

HDMI is DVI with the addition of:

Audio (up to 8-channels uncompressed)
Smaller Connector
Support for YUV Color Space
CEC (Consumer Electronics Control)
CEA-861B InfoFrames


6.Is HDMI compatible with DVI?

Yes. HDMI currently uses the 'single-link' channel of DVI-D. However, when you convert from HDMI to DVI, there will be no audio because DVI does not carry an audio signal.


7.Can I convert HDMI to VGA?

Yes, but not with a cable or adapter. You need a HDMI to VGA converter box which we do not sell at this time. Some AV receivers have this converting capability built in.


8.What is the HDMI Extender?

The HDMI Extender allows you to extend the length of HDMI cable used in your theatre system. It is especially useful in DLP projector systems where the source and projector are far apart. The unique circuitry automatically provides compensation for DVI, HDMI cables by equalization, buffering and de-jittering the TMDS signals which degrade over long cable runs. The HDMI Extender "cleans" up all signals to ensure error free transmission.


9.How do I run HDMI cables longer than 10 meters?

There are many HDMI Adopters working on HDMI solutions that extend a cable’s effective distance from the typical 10 meter range to much longer lengths. These companies manufacture a variety of solutions that include active cables (active electronics built into cables that boost and extend the cable’s signal), repeaters, amplifiers as well as CAT5/6 and fiber solutions.


10.What is an HDMI switch, and why do I need one?

If your TV or monitor only has 1 HDMI input and you have more than one HDMI compatible device, you can use a switch to connect all devices. Our 3 port switch allows you to connect 3 HDMI compatible devices, and our 4 port switch allows you to connect up to 4 devices. Our switches come with a remote control and are HDCP compliant.