Here you can see The Beatles Abbey Road Blu-ray. Ripping the content is done by the MakeMKV application. To do this, use a Blu-ray drive such as the Archgon BU40N that can also rip UHD 4K Blu-ray Discs (although a firmware adjustment is required to rip UHD). Start by ripping the Dolby TrueHD content from a Blu-ray Disc. With respect to performance, a computer based system can use several types of room correction, 65,000+ taps, upsample to high rate PCM or DSD, and output to high end DACs with interfaces much better than HDMI. The flexibility of a computer based system is endless (for better or worse). The cost of a high end processor can set you back $10,000 or much more. Why would someone want to decode and play Dolby TrueHD Atmos content on a computer rather than an AVR or processor? Mainly it's about cost, flexibility, and performance. The only source of lossless Dolby TrueHD Atmos is on Blu-ray Discs. However, this is the lossy version, not TrueHD lossless. This is how Atmos / Spatial Audio content can be played and listened to on a Mac. MacOS has a built-in Dolby Digital Plus decoder using what's called DD+JOC. It isn't practical to extract the height channels to a separate file, these are available at the time of decoding. This makes the content on Blu-ray Discs appear like plain 7.1, but when decoded, the height channels are filled. 7 main channels, 1 subwoofer, and 4 height channels.īoth DD+ and TrueHD carry the height channels in metadata. For example I'm putting together a 7.1.4 Atmos system. There are two codecs used with Dolby Atmos content.Ītmos offers additional height channels to the more traditional 5.1 or 7.1. Here is a little background and all the information you'll need to decode and play lossless Dolby TrueHD with Atmos on a Windows or macOS computer, without the need for HDMI output.
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