Atmos decoder, line out?

A board is provided with T's and C's that allow you to do whatever you want with it. The same board is also provided but with the addition of someone else's proprietary IP on it and T's and C's that reflect that addition. The problem is you do not want to put in the effort required to create the additional IP for the board without it and you do not wish meet the T's and C's required for the board that includes it.
That's too many T's and C's that most DIYers would simply decide not to buy these boards, and all the T's and C's gone, just like that !!!!

Getting an AVR and tapping its I2S lines seems to have a much lesser number of T's and C's associated with it. Plus, you also get to keep the bells and whistles of the AVR like a decent interface, source switching, video passthrough, remote control etc. A separate processor can then handle the crossover, room EQ etc. , as already mentioned by @Reactance.
 
That's too many T's and C's that most DIYers would simply decide not to buy these boards, and all the T's and C's gone, just like that !!!!
You are not a license holder and as such, a rampant sense of entitlement notwithstanding, such things are not meant for you. Being a DIYer does not confer any special status upon you. You need to get used to the idea that in the general scheme of things you have all the impact of a flea fart in a force 9 gale as far as the vendors are concerned.
Getting an AVR and tapping its I2S lines seems to have a much lesser number of T's and C's associated with it.
A solution the more realistic have been applying since the early days of digital surround sound. There are projects here dating back to around 2004.
 
You are not a license holder ...
You don't need to be, especially when you purchase a complete product that includes everything necessary to make sound. The DIYer (even without any special status) still paid for the all the IP, licences and logos and everything right when he/she purchased such a product.

Nobody is cheating. However, people do have the right to choose not to buy something and that includes licences ...
... a rampant sense of entitlement notwithstanding, such things are not meant for you. Being a DIYer does not confer any special status upon you.
Yes, they are indeed meant for us, and without us, nobody sells a thing ... It won't be long before an open-source implementation for ATMOS would appear (if it doesn't already exist), as it did with Dolby's AC3, DDP etc.

https://www.etsi.org/deliver/etsi_ts/102300_102399/102366/01.02.01_60/ts_102366v010201p.pdf
https://www.etsi.org/deliver/etsi_ts/103100_103199/10319002/01.02.01_60/ts_10319002v010201p.pdf



:LOL::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO:
 
You keep moving the target if that works for you. What it all boils down to is that you cannot buy the boards in question unless meet their terms. You are absolutely right. You have every right to refuse to buy something that no one has any intention of selling to you.
 
  • Like
Reactions: 1 user
Now, I don't understand what you mean. I would've recommended that board if it had with all the relevant licences, bundled alongwith. I'm not against ADI or any other semiconductor company, and being a designer I'm in very good terms with many of them. However, on this forum, I speak for the DIYer and the spirit of DingIY, not as a professional.

For anyone interested in ATMOS specifications,
https://www.etsi.org/deliver/etsi_ts/103400_103499/103420/01.02.01_60/ts_103420v010201p.pdf

By using a BD-drive on a computer, it may be possible to avoid the HDMI interface altogether along with the issues.
 
The observant reader would effortlessly gather that I've been talking about 'not buying the boards' right from the start. It therefore, doesn't matter if the licence needs to be purchased before or after the board.

Small volume developers could have a look at an open-source implementation:
https://github.com/VoidXH/Cavern

Note that the above gives ATMOS functions with DDP, not TrueHD or the newer AC-4 format. However, I understand that there could be significant updates, as the work is still ongoing.
 
Last edited: