Convert ATMOS and DTS:X to FLAC
As a bonus I would like to check how good new object-based codecs Dolby Atmos and DTS:X compressed. In new codecs sounds are encoded as objects, that coming from a certain position, rather than from where the speakers are supposed to be. And then the reciever mixes the audio to make it sound like it's coming from that position.
![](../../img/blog/immersive-audio-logos.jpg)
Dolby Atmos and DTS:X Logos
Be aware that Dolby Atmos is an extension to TrueHD and DTS:X - is an extension to DTS-HD MA. Those extensions metadata will be ignored or stripped out during conversion, because its not comparable to any audio codec yet. So only DTS-HD MA and TrueHD part will be recompressed.
I have only a few movies with object-based soundtracks so averages will not be so fair.
Convert ATMOS to FLAC
Saving (Movie / Audio) | Movie Name | ATMOS Size (GB) | FLAC Size (GB) | Saving (GB) | Layout / Bit Depth | Movie Size (GB) |
8% / 43% | Gravity (2013) | 3,39 | 1,93 | 1,46 | 7.1 / 24 | 17,25 |
6% / 51% | Swiss Army Man (2016) | 3,19 | 1,57 | 1,62 | 7.1 / 24 | 26,54 |
5% / 39% | Suicide Squad (2016) | 3,53 | 2,17 | 1,36 | 7.1 / 24 | 26,81 |
7% / 47% | Total | 6,58 | 3,50 | 3,08 | 43,79 |
Convert DTS:X to FLAC
Saving (Movie / Audio) | Movie Name | DTS:X Size (GB) | FLAC Size (GB) | Saving (GB) | Layout / Bit Depth | Movie Size (GB) |
5% / 45% | London Has Fallen (2016) | 3,17 | 1,74 | 1,43 | 7.1 / 24 | 26,82 |
Even object oriented HD-audio is the future of cinematic sound, DTS-HD MA still truly leads among other codecs on the Blu-ray market.
Codec | Movies | Percentage |
DTS-HD Master Audio | 7083 | 65.0% |
Dolby TrueHD | 1404 | 12.9% |
Linear PCM | 808 | 7.4% |
Dolby Atmos | 134 | 1.2% |
DTS:X | 27 | 0.3% |