1.3b
- Transfer color depths up to 48-bits, and can accommodate resolutions much higher than the 1080p
- Output of Dolby TrueHD and DTS-HD Master Audio streams for external decoding by AV receivers
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1.4 enhances 1.4 enabled components
- HDMI Ethernet Channel (HEC) for internet and home network connectivity to HDMI so both Ethernet and HDMI functions are available within a single cable connection
- Audio Return Channel for upstream audio transfers over the same HDMI cable allowing audio/video signals to pass from the receiver to the TV, as well as audio originating from the TV's tuner to the receiver
- Introduces support for 3D over HDMI by supporting common 3D formats and resolutions up to 1080p
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