Apple TV 4K Gets TrueHD Atmos Audio

A clever developer has devised an open-source method to deliver lossless Dolby TrueHD audio, complete with Dolby Atmos effects, to the third-generation Apple TV 4K. This is a significant development, as the Apple TV 4K officially supports only the more compressed Dolby Digital Plus codec. The new system works by decoding the TrueHD Atmos audio and positional data separately.

This data is then re-rendered into a fixed 9.1.6 speaker configuration before being converted into Apple's own Positional Audio Codec (APAC). While APAC itself is not a lossless format, the resulting audio quality is reported to be highly impressive. This approach aims to replicate the functionality of closed-source applications like Native Player with an open-source alternative, fostering community development and transparency.

Implementing this solution requires a Mac with Xcode and an Apple developer account to sign the app. The Apple TV 4K must be running tvOS 16 or later, and users will need movie files with 48kHz TrueHD Atmos audio. Enthusiasts hope this project will be integrated into popular media players like Nuvio, making the advanced audio experience accessible to more users. The developer built upon existing open-source projects, highlighting collaborative innovation in home theater technology.