Does the TX1 support Audio over Ethernet and Dolby Atmos, and if it does not, can you build support for these features?
The audio HUB has an interface which goes to connector J21. The audio HUB directly supports (in hardware) S/PDIF or I2S (J21 has I2S) up to 8 channels. This would be suitable for 7.1 surround sound, but not Dolby Atmos. There may be a way to use GPU to aid in audio encoding/decoding for Dolby Atmos, but this is not directly supported and I would expect real-time support of 128-channel Atmos to not work.