That means there will be no noticeable difference in the quality of the sound after it’s decoded back into an uncompressed form. What is Dolby TrueHD?ĭolby TrueHD, as mentioned before, is a lossless compression audio technology. However, if the device does not support Atmos, it ignores the extension data and plays the audio with Dolby TrueHD format. In other words, if you play a movie with Atmos audio, your speaker set will decode the Atmos data and produce sound from it. Typically, when a device is compatible with both of them, the Dolby Atmos gets higher priority than the Dolby True HD. Therefore, when a sound device or TV does not support Dolby Atmos, the data is folded back into the bitstream in order to sustain backward compatibility. You can consider Atmos to be an extension of Dolby’s TrueHD format. Dolby TrueHD vs Dolby Atmosĭeveloped by the same company, Dolby Laboratories, these two audio formats work in completely different ways. In this article, we’ll discuss both Dolby TrueHD and Dolby Atmos in detail and help you understand how they differ yet work together at the same time. Dolby Atmos can be embedded inside of either Dolby TrueHD (lossless) or Dolby Digital Plus (lossy). Dolby Atmos is a 3D surround sound technology that allows sounds to be placed anywhere in a 3D environment. But what are the differences between them?ĭolby TrueHD is a lossless audio codec with support for up to 7.1 audio channels and is used with Blu-ray Discs.

Among those, two of the more pronounced names are Dolby TrueHD and Dolby Atmos. As enhanced audio experiences are becoming more popular, newer and more advanced technologies are surfacing.

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