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VoidXH / Cavern

Object-based audio engine and codec pack with Dolby Atmos rendering, room correction, HRTF, one-click Unity audio takeover, and much more.
http://cavern.sbence.hu
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Is it possible to add 5.1 downmix settings to Cavernize's "Show metadata" feature? #178

Closed bluewidy closed 2 weeks ago

bluewidy commented 2 weeks ago

Mediainfo changelog

Starting with version 22.03, Mediainfo added an item showing 5.1 downmix settings. So, when I open the ADM BWF file through Media Info, the values ​​appear as follows.

sample1 sample2

But this is not the case for ec3-joc or TrueHD files. 5.1 Downmix metadata is not visible.

sample3

So I looked at the "Show metadata" feature in Cavernize, and it seems to provide a much larger amount of metadata than MediaInfo does.

Cavernize Show metadata

But I can't find any values ​​for the 5.1 downmix settings here either. I wonder if you can add a 5.1 downmix metadata entry.

VoidXH commented 2 weeks ago

This information is not contained in the AC-3 format. Only downmixing levels for the center (cmixlev) and surrounds (surmixlev) are saved, and the downmixing method is the same for all files, it's defined in the standard. The only case where there is a field in the file, is when it was downmixed, then it will contain how it was downmixed - if the encoder supports this feature.