I need clarification regarding target loudness and DRC effect parameters.

ittiam-systems / libmpegh

MPEG-H 3D Audio Low Complexity Profile Decoder. Encoder: https://github.com/ittiam-systems/libmpeghe

http://www.ittiam.com/

BSD 3-Clause Clear License

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I need clarification regarding target loudness and DRC effect parameters. #91

Open bluewidy opened 2 weeks ago

bluewidy commented 2 weeks ago

I'm curious what the numbers in the DRC effect parameters mean. Do you follow this description? However, the description of parameters 7 and 8 is missing. https://github.com/Fraunhofer-IIS/mpeghdec/wiki/MPEG-H-decoder-parameters#drc-effect-type

And for the target loudness parameter, do you follow this description? However, the range described in the documentation is -63 to 0. https://github.com/Fraunhofer-IIS/mpeghdec/wiki/MPEG-H-decoder-parameters#target-reference-level

SakethSathuvalli commented 1 week ago

The description for the DRC effects 0-8 are available Table 12 of the document ISO/IEC 23003-4. We will add an update to our documentation with a brief about these effects soon. The descriptions present in the link you shared match for effect types 0-6 in our case as well.

Regarding loudness our interface is different from the link You shared.