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Today’s Show:

HDMI 1.5 Wish List

When we bought our first devices that supported HDMI way back in 2006 the hot devices could handle the HDMI 1.1 specification. At that time the big deal was an AV receiver that would take next generation audio formats decoded on Blu-ray players and sent to a receiver that could accept PCM audio via HDMI. HDMI is still the only way to get next generation audio into a receiver.

Since then the HDMI specification has been updated more than five times and presently sits at version 1.4a which was released in March of 2010. We won’t go back to the beginning but SOME of the more notable features are:

  • HDMI 1.3
    • Deep Color Support (Optional) – By the way, we are still waiting on content to support this.
    • Support for next generation audio output to receivers (Optional)
    • Increased data rate up to 10.2 Gbps
    • Defined mini connectors for portable devices
  • HDMI 1.3a
    • Support for streaming SACD in bitstream DST format rather than uncompressed raw DSD (Optional)
    • Minor improvements
  • HDMI 1.3b/c
    • Define testing for HDMI 1.3a
  • HDMI 1.4
    • Define maximum resolution to 4K × 2K (3840×2160p at 24 Hz/25 Hz/30 Hz and 4096×2160p at 24 Hz
    • Support for Ethernet Channel
    • Audio Return Channel
    • 3D
    • Defined Micro Connector
  • HDMI 1.4a
    • Defined additional 3D formats not covered in version 1.4

At this time we haven’t seen the HDMI 1.5 spec and actually wonder is there a need for one. Regardless we thought it would be fun to come up with a list of what we thought would be cool features to include. Ara asked for your ideas on Facebook and Twitter (@HDTVPodcast @BradenRussell). There were some good ideas but mostly people are pretty much fed up with the ever changing spec.

Power – This one came up a few times from our listeners. It would make wiring up a system much simpler. Although it may require a redesign in the actual cable. It would take a pretty beefy power supply to handle this though. Our vision would probably see the AVR as the hub for this type of scenario. A satellite or cable box might be able to support an additional device like a TV. It would make wall mounting your flat panel TV a bit easier.

Universal Remote Commands (Jon Christensen via Facebook) – It would be nice to be able to send a mute command to the receiver and then have it send it to the Satellite or Cable Box which would then turn on closed captioning. We know you can do this by programming a macro but other than the HT Guys and their listeners who else does this. Or send a DVD, Blu-ray, or TV commend to the receiver and have the system turn on only the devices for that activity. We know this is possible via programming your remote or if you buy equipment from one manufacturer. We’d like to see this as a standard that would work regardless of manufacturer with auto discovery.

Integration with Home Automation (Lee Overstreet via Facebook) – This ties in with the Universal Remote Commands. We envision a device that would plug into the HDMI hub or as part of a daisy chain that bridges between your home automation and home theater. Ne need to run RS-232 lines anymore. The benefit to manufacturers is that they don’t have to support all the home automation systems any more. Just support one standard and everyone can play!

Download Episode #479


Posted by The HT Guys, May 19, 2011 10:51 PM

About The HT Guys

The HT Guys, Ara Derderian and Braden Russell, are Engineers who formerly worked for the Advanced Digital Systems Group (ADSG) of Sony Pictures Entertainment. ADSG was the R&D unit of the sound department producing products for movie theaters and movie studios.

Two of the products they worked on include the DCP-1000 and DADR-5000. The DCP is a digital cinema processor used in movie theaters around the world. The DADR-5000 is a disk-based audio dubber used on Hollywood sound stages.

ADSG was awarded a Technical Academy Award by the Academy of Motion Picture Arts and Sciences in 2000 for the development of the DADR-5000. Ara holds three patents for his development work in Digital Cinema and Digital Audio Recording.

Every week they put together a podcast about High Definition TV and Home Theater. Each episode brings news from the A/V world, helpful product reviews and insights and help in demystifying and simplifying HDTV and home theater.