Aug/090
What’s in store for HDMI 1.4
This latest version of the HDMI specification will, among other advancements, offer networking capabilities with Ethernet connectivity and will add an Audio Return Channel to enable upstream audio connections via the HDMI cable.
Version 1.4 will support such additions as an Enthernet Channel for high-speed bi-directional data, Audio Return, 4k x 2k Colour as used in many Digital Cinemas and 3DTV, allowing dual channel 1080p.
Aug/090
Aspect Ratios – A Wider Vision
Aspect ratio is becoming more widely talked about, particularly with the advent of high quality DVD. Most DVD’s contain a couple of different versions of the movie, in different aspect ratios. What is it, and why does it matter? In simplest terms the aspect ratio of a movie is the size of hole you look at it through, or more explicitly, the ratio between the width and the height of that hole. If this all sounds as boring as logarithms wait till it gets complicated.
Jul/091
High Definition Audio
There are several HD Audio formats available and at this time the only way to enjoy these is via a Blu Ray player, these formats can then be passed to a capable AV AMP, such as the top selling Onkyo SR507.
| Dolby Digital Plus | Dolby TrueHD | DTS-HD High Resolution | DTS-HD Master Audio | Linear PCM | |
|---|---|---|---|---|---|
| Bit rate | 6.144Mbps | 18Mbps | 6Mbps | 24.5Mbps | 27.6Mbps |
| Bit depth | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit |
| Sample rate | 48Khz | 96Khz | 96Khz | 96Khz* | 192Khz |
| Channels | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 |