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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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In Reply to: RE: ARC = Audio Rate Control posted by edward on December 13, 2010 at 22:44:25:
Yes, they took an interface that was fine for its intended purpose -- sending video signals a few feet from the computer to the nearby monitor. They stretched its effective length to the breaking point, and then they piled endless heaps of dung on top of it:
- HDCP "content protection"
- Audio (but with no audio clock!)
- Consumer Electronics Control (a poorly thought out pathetic attempt at linking the control of various components)
- Power (intended only for turning on the memory chip of a downstream receiver that was off)
- Extended Display Identification Data (again, poorly thought out)
And that was just for starters. After that they added:
- Higher bandwidth for video signals
- More color space encoding schemes
- Additional content protection for DVD-Audio content
- Support for DSD audio
- Audio Rate Control
- Support for higher audio data rates, including new lossless formats
- Ethernet (!)
- Audio Return Channel
- Four additional connector types (!)
- Support for even more video bandwidth, including formats that don't exist (4K x 2K)
- Support for 3D video
It is such a huge pile that it is just a big pile of dung.
For video HD-SDI is a much better solution. For audio *anything* is better, even multiple S/PDIF lines. But we're stuck with it. I would hazard a guess that probably 20% of the total cost and development time of a video disc player and/or a surround processor is just devoted to working out all of the problems and incompatibilities of HDMI...
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Follow Ups
- HDMI Overview - Charles Hansen 19:28:54 12/14/10 (0)
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