Youdon't need eARC for Dolby Atmos. Dolby Atmos works over regular ARC with any compatible TV and sound system only when encoded through Dolby Digital Plus. eARC is backward-compatible, so it'll still work with any ARC device. Dolby Atmos encoded through Dolby TrueHD only works over eARC. This article will explain everything you need to Conclusion Dolby Audio is a smart way to make your TV sound better. It can create a surround sound effect by simulating the position of different sounds in three-dimensional space. This technology makes it easier for you to hear your favorite characters talking or music playing from all sides, making watching TV more immersive and enjoyable. However the differences are noticeable. In terms of lossless technology, whereas Dolby TrueHD is applying Meridian lossless packing (MLP) Lossless core process, DTS HD utilizes the High-Resolution Audio and DTS Digital Surround technique. At the same time, Dolby TrueHD has a relatively lower bit rate limitation at 18Mbps whilst DTS HD Master Butif I have Change Format turned off and Immersive Audio turned on on the Apple TV, when I watch Dolby Digital Plus 5.1 content, the Sonos app reports "Multichannel PCM 5.1" and Dolby Atmos content via Dolby Digital Plus reports as "Dolby Atmos". FYI the Apple TV 4K uses Dolby MAT which is a form of PCM audio. TheDolby Surround Upmixer primarily focuses on drawing ambient and atmospheric sounds into the height speakers while leaving most discrete sound effects in the original ground channels. DTS HowDolby Became a Game Changer. Matt 4. Dolby Cinema, a premium cinema experience from Dolby Laboratories and AMC Theatres that delivers the most immersive movie-going experience yet. It combines state-of-the-art image and sound technologies, including Dolby Vision and Dolby Atmos, along with plush high back rocking seats for an unrivaled DolbyAtmos allows you to position each instrument in a virtual space (with assigned height, width, and depth). The Atmos renderer does the hard work of making the mix sound clean, clear, and three-dimensional on headphones and speakers. It's really kind of magical how well it works. I'm an old fart. DolbyCinema is a system created by Dolby Laboratories. It includes technology such as Dolby Atmos and Dolby Vision to provide a superior cinema experience. The key to providing a good movie experience is immersiveness and Dolby Cinema has mastered it. Dolby Atmos and Dolby Vision: Explained. Cinema consists of two main components: audio and video. HeightVirtualization is a feature that basically mimics the Atmos height effects. Dolby Atmos Height Virtualization can provide more immersive and 3-dimensional audio. Unfortunately, height effects will be less subtle than Dolby Atmos with overhead speakers. Without height speakers, Height Virtualization technology is essentially tricking the f6P7HK.