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Old 24th June 2022, 17:49   #1  |  Link
CapricornX10X
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Join Date: Mar 2020
Posts: 81
Understanding dolby atmos (true hd) with ac3 core

Hi everyone,
I have to understand something,
I have a movie whose audio format is AC3 core + TRUE HD + ATMOS
Peak speed: 7050kbps (core 640kbps)
Sample Rate: 48Khz Channels: 7.1

For example, when I play the movie through POWERDVD 22 in an iso (full bluray) or mt2s file, the audio selection shows me only one choice of dolby true-hd 7.1.

Alternatively when I convert the same file to an mkv file and I also play it through powerdvd 22, I suddenly see that I have 2 audio choices:
1.dolby true-hd 7.1
2.dolby ac3 5.1

Can anyone explain to me what's going on here?

When I convert to an mkv file do I lose some audio quality that I choose dolby true hd 7.1, because ac3 core is not in the same audio?
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