- Μηνύματα
- 12
- Reaction score
- 0
Για ριξτε μια ματια στο παρακατω. Ειναι σωστος ο ισχυρισμος αυτος? Οτι δηλαδη ενω το DVI κανει μεταφορα ψηφιακης πληροφοριας 8 bit, το HDMI ειναι ικανο για μεταφορα 10 bit (ηδη) ή και 12 bit. Το αποσπασμα ειναι απο το site
http://www.hometheaterhifi.com/cgi-bin/shootout.cgi?function=search&articles=123
Aside from the macroblocking issue, the Faroudja continues to be one of our favorite de-interlacing/scaling solutions. It is one of only a few true 10 bit video processing chips available, and its diagonal line processing is still the best in the industry. Since the S77 has an HDMI output, it can deliver a true 10 bit video signal if the output is never converted to DVI. There is a common misconception in the electronics world that DVI and HDMI are identical except for HDMIs ability to carry multi-channel audio signals on top of video. This is not true. DVI outputs 8 bit RGB signals only and cannot carry 10 bit video like HDMI can. In fact, HDMI is actually capable of 12 bit transmission as well. What does this buy you? Well if you are lucky enough to have a display with an HDMI input, you can significantly reduce the contouring artifacts that are commonly associated with digital displays. A lot of this may depend on the internal processing of your display though too. This is one of the gripes Ive had with DLP based projectors and displays. Most are DVI- based and only incorporate 8 bit processing internally. So contouring in gray ramps is quite evident. Youll also usually see it in skies and underwater scenes. If you are lucky enough to have a display with an HDMI input, and with high bit processing, this is pretty much eliminated.
http://www.hometheaterhifi.com/cgi-bin/shootout.cgi?function=search&articles=123
Aside from the macroblocking issue, the Faroudja continues to be one of our favorite de-interlacing/scaling solutions. It is one of only a few true 10 bit video processing chips available, and its diagonal line processing is still the best in the industry. Since the S77 has an HDMI output, it can deliver a true 10 bit video signal if the output is never converted to DVI. There is a common misconception in the electronics world that DVI and HDMI are identical except for HDMIs ability to carry multi-channel audio signals on top of video. This is not true. DVI outputs 8 bit RGB signals only and cannot carry 10 bit video like HDMI can. In fact, HDMI is actually capable of 12 bit transmission as well. What does this buy you? Well if you are lucky enough to have a display with an HDMI input, you can significantly reduce the contouring artifacts that are commonly associated with digital displays. A lot of this may depend on the internal processing of your display though too. This is one of the gripes Ive had with DLP based projectors and displays. Most are DVI- based and only incorporate 8 bit processing internally. So contouring in gray ramps is quite evident. Youll also usually see it in skies and underwater scenes. If you are lucky enough to have a display with an HDMI input, and with high bit processing, this is pretty much eliminated.
