Dolby Atmos vs Dolby Audio: what really changes?
The terms Dolby Atmos and Dolby Audio are often confused, but they actually indicate two very different things.
One is a precise format for immersive audio, the other is an “umbrella” brand that encapsulates several Dolby technologies dedicated to sound quality. In this article we will clarify the differences so you can figure out which one is right for you.
What is Dolby Audio
Dolby Audio is not a specific format, but a trademark used by Dolby to denote a set of sound processing technologies.
It may include:
- Dolby Digital (AC-3), the 5.1-channel standard;
- Dolby Digital Plus (DD+), used in streaming platforms;
- Dolby TrueHD, high-fidelity lossless format.
When you read “Dolby Audio” on a device, it means that it supports some of these technologies, providing clear, balanced audio that is compatible with multiple sources. But it does not necessarily imply the presence of Dolby Atmos.
What is Dolby Atmos
Dolby Atmos is a specific and revolutionary format launched in 2012.
Unlike Dolby Audio, it is not a generic brand but a technology based on sound objects. This means that sounds can be placed in three-dimensional space (even above the listener),
generating an immersive experience beyond classic fixed channels.
Atmos has become the new standard for cinema, streaming, gaming and music, with configurations ranging from 5.1.2 to 7.1.4, up to much more complex installations.
Comparative table
| Feature | Dolby Audio | Dolby Atmos |
|---|---|---|
| Definition | Brand that includes multiple technologies (Dolby Digital, DD+, TrueHD) | Specific technology for immersive audio |
| Approach | Fixed channels (5.1, 7.1) | Sound objects placed in space |
| Vertical dimension | No | Yes |
| Compatibility | Wide: TV, set-top box, sound system, streaming | Cinema, Blu-ray UHD, streaming (Netflix, Disney+, Apple TV+), gaming, music |
| Listening experience | Clear and optimized, yet two-dimensional audio | Immersive, dynamic and three-dimensional |
| Example of use | Movies in Dolby Digital on TV or streaming in DD+ | Movies, albums and video games in Atmos, with 360° audio |
When to choose one or the other
- Dolby Audio is a good place to start: it provides compatibility with most content and devices, with higher quality than basic stereo audio.
- Dolby Atmos is the next step for those seeking a fully immersive experience with dedicated home theater systems or state-of-the-art compatible devices.
In summary, Dolby Audio is a brand that guarantees quality and compatibility, while Dolby Atmos is a well-defined technology that redefines the sound experience through its three-dimensional approach.
At Garvan Acoustic, we integrate Dolby Atmos into our stylish and customized Made in Italy systems to transform every viewing or listening experience into an immersive one.
I have always been passionate about music and cinema. I believe that sound can improve the quality of people’s lives, which is why at the age of 25 I co-founded Garvan Acoustic with Roberto Gaudenzi.
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