[jeffbee]

Licensing is definitely strangling the market for Atmos decoders. If you have particular requirements you can always do it with ~$2k in Dolby software licenses and also ~$2k in converters. You cannot, unfortunately, DIY hardware for Atmos without an HDCP license. If you have one of those you can actually DIY something around a DSP like the ones Analog Devices sells preloaded with the IP. Then again if you have those kinds of resources you probably already work for Harman or something.

[hedora]

Gee, look what fell out of the back of a truck:

https://www.alibaba.com/product-detail/HDMI-1-4-Splitter-1-i...

$25 minimum order (for ten) + shipping and tariffs. No idea if these work, but they’re the top internet hit. The metadata says they do.

[jeffbee]

Yes but ADI won't even sell you the DSP I mentioned unless you produce your HDCP license.

[iwontberude]

Whenever I try to use these they don’t work with the latest hardware

[aidenn0]

Someone (Monoprice I think?) sells a box that downgrades HDCP; this is actually allowed in the HDCP agreement. Run the signal through that first.