Developed by the French and Parisian company Cutz, the optimized “Green” encoding allows the distribution of an Ultra HD 4K stream with a bit rate of 3.2 Mbps of quality equivalent to a [abc]HEVC[/abc] signal with a bit rate of 100 megabits per second!
UHD Green, a line of thought for a 4K TNT Switch-off££££
Concretely this corresponds to an occupation approximately 30 times less in terms of bandwidth, i.e. a carbon footprint reduced by approximately 97%. And it is still half as much as the current France 2 [abc]1 080p[/abc] (Full HD) signal flow available from an internet operator… What about the result, you might ask? It is astonishing. Certainly, looking carefully at the two video streams below, differences appear between the two, in favor of the 100 Mbps stream of course, but it is still better than a 1080p broadcast. And if the demonstration was made on an [abc]SDR[/abc] signal, the support of an [abc]HDR[/abc] signal does not pose the slightest problem with unchanged flow proportions. And if the UHD Green process is primarily designed for archiving purposes, it is possible to use it on the live stream to ensure, for example, a direct broadcast. This opens up interesting perspectives…
There is no doubt, in fact, that this type of technology should interest the legislator and all the players in the French audiovisual landscape, particularly with a view to a Switch-off from [abc]TNT[/abc] to [abc]Ultra HD[/abc] [abc]4K[/abc] at the end of the decade as already mentioned in our columns (see our news Alert: 100% of TNT switches to 4K by 2029 at the latest (Switch-off)). We hope that the rapporteur of the law relating to the reform of public audiovisual and audiovisual sovereignty, the full examination of which is still to come, plus a few deputies and senators in addition to our Minister of Culture Rachita Dati, will have had the opportunity to drop by the RG Lab to be aware of the technologies and possibilities offered within the framework of the modernization of TNT.
