Frequently Asked Questions about HDMI v1.3
Q: So what is HDMI?
Well, as defined on www.hdmi.org: “HDMI™ (High-Definition Multimedia Interface) is the first and only industry-supported, uncompressed, all-digital audio/video interface. By delivering crystal-clear, all-digital audio and video via a single cable, HDMI™ dramatically simplifies cabling and helps provide consumers with the highest-quality home theater experience. HDMI™ provides an interface between any audio/video source, such as a set-top box, DVD player, or A/V receiver and an audio and/or video monitor, such as a digital television (DTV), over a single cable. HDMI™ supports standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable. It transmits all ATSC HDTV standards and supports 8-channel, 192kHz, uncompressed digital audio and all currently-available compressed formats (such as Dolby Digital and DTS). HDMI 1.3 adds additional support for new lossless digital audio formats Dolby® TrueHD and DTS-HD Master Audio™ with bandwidth to spare to accommodate future enhancements and requirements.”
Q: OK, so what is HDMI 1.3?
HDMI is a fairly new technology and is therefore still evolving. Each revision brings new features for electronics manufacturers to incorporate into equipment designs. The HDMI 1.3 specification adds the following features (from www.hdmi.org):
Higher speed: HDMI 1.3 increases its single-link bandwidth to 340 MHz (10.2 Gbps) to support the demands of future HD display devices, such as higher resolutions, Deep Color and high frame rates.
Deep Color: HDMI 1.3 supports 10-bit, 12-bit and 16-bit (RGB or YCbCr) color depths, up from the 8-bit depths in previous versions of the HDMI specification, for stunning rendering of over one billion colors in unprecedented detail.
Broader color space: HDMI 1.3 adds support for “x.v.Color™” (the consumer name describing the IEC 61966-2-4 xvYCC color standard), which removes current color space limitations and enables the display of any color viewable by the human eye.
New mini connector: With small portable devices such as HD camcorders and still cameras demanding seamless connectivity to HDTVs, HDMI 1.3 offers a new, smaller form factor connector option.
Lip Sync: Because consumer electronics devices are using increasingly complex digital signal processing to enhance the clarity and detail of the content, synchronization of video and audio in user devices has become a greater challenge and could potentially require complex end-user adjustments. HDMI 1.3 incorporates automatic audio synching capabilities that allow devices to perform this synchronization automatically with total accuracy.
New HD lossless audio formats: In addition to HDMI’s current ability to support high-bandwidth uncompressed digital audio and all currently-available compressed formats (such as Dolby® Digital and DTS®), HDMI 1.3 adds additional support for new lossless compressed digital audio formats Dolby TrueHD and DTS-HD Master Audio™.
Q: How do I know that the cables I am buying are HDMI 1.3 compliant?
You need to make sure that you are buying from a trusted source. www.whatacable.com carries a full line of 1.3 compliant HDMI Cables. They are high-quality HDMI cables that support performance features associated with version 1.3 of the HDMI specification.
Here is a link to the HDMI cables page: http://www.whatacable.com/hdmi_cables.aspx
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The Cable Guy