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 Cmple-Select

Cmple-Select

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 Cmple-Select is a wholesale of custom cables and accessories for Home Theater. We specialize in HDMI cables and HDMI accessories. At our store you can find all types of HDMI connections: regular, with Ethernet, mini, micro. All products are offered with Free US Shipping!

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General Interest
  
Audio Return Channel


Audio Return Channel

The Audio Return Channel in HDMI 1.4 enables a TV, via a single HDMI cable, to send audio data “upstream” to an A/V receiver or surround audio controller, increasing user flexibility and eliminating the need for any separate S/PDIF audio connection.

TVs have always been able to receive multi-channel audio through an HDMI connection, and this is still a typical use-case, with the TV positioned “downstream” from content sources and any connected audio equipment. However, if a user had a TV with a built-in tuner or DVD player, and wanted to send content “upstream” from the TV back to the audio system, a separate connection had to be installed, typically an S/PDIF cable.


  • An Audio Return Channel-enabled TV can either send or receive audio via HDMI, upstream or downstream, depending on system set-up and user preferences.

  • LipSync functionality, introduced in HDMI 1.3, ensures that the audio stays matched to the video, automatically compensating for any processor delays whether the audio is traveling upstream or downstream.