LG’s 2017 OLED TVs will be the first TVs to support Dolby TrueHD, which is a lossless sound technology. It is being added through a firmware update that should reach all owners this month.
Lossless sound on your TV
When we examined the changelog for LG’s latest firmware earlier this week, we noticed that included a reference to Dolby TrueHD. It was a little unclear what it entailed but we now have the official word from LG Korea.
The lossless and uncompressed audio format can be used to deliver conventional Dolby 5.1 / 7.1 surround or Dolby Atmos, which is object-based audio. LG 2017 OLED TVs already had support for Atmos but only in a lossy (non-lossless) Dolby Digital Plus container. Delivering Atmos within the TrueHD container should significantly improve audio quality.
The company added that Dolby TrueHD sound is already adopted on Ultra HD Blu-ray.
Dolby TrueHD from game consoles
LG explains that the update also includes support for something called ‘Codec MAT’, which stands for Metadata-enhanced Audio Transmission.
This enables Dolby TrueHD audio bitstreaming on 2017 OLED TVs when playing games from a game console. To enjoy this, the content on your game console must include audio in the format.
All of LG’s 2017 OLED TVs have built-in Dolby Atmos speakers. B7 and C7 have hidden speakers whereas E7 and G7 have soundbars. The flagship W7 has an external Atmos-enabled soundbar with up-firing units.
With the update, LG and Dolby are strengthening their partnership. In 2016, LG added support for the Dolby Vision HDR format to its OLED TVs and in 2017 it further added support for Dolby Atmos sound.
Firmware version 04.70.06 is currently rolling out in the US and Europe. Some users have already received it and LG expect it to be fully deployed by the end of this month.