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pcroland / deew

Dolby Encoding Engine Wrapper
https://deew.dev
MIT License
195 stars 20 forks source link

[IMPROVEMENT] Disabling dynamic compression #50

Closed Qarmaa closed 1 year ago

Qarmaa commented 1 year ago

Using 2.9.5 and have and issue here. So I was trying to encode a 5.1 audio with in DD with 448 kbps, forced -31 dn and getting the dynamics compression for some reason (on top of lowering whole file volume even with -31 dn). Same results with -27 DN value. Am I missing something? Haven't have something like that with neither Dolby Media Production Suite or just ffmpeg.

image_2023-03-23_03-38-31 image_2023-03-23_03-38-31 (2)

pcroland commented 1 year ago

@Qarmaa you should provide sample files

Qarmaa commented 1 year ago

I figured that it's DRC mode that affects the audio, sadly there is no 'none' mode as it was in DMP Suite. For some reason ffmpeg doesn't have option to disable it while decoding.

Mahaaveer commented 1 year ago

I feel the same about the DRC. Has anyone figured a way to keep DEE from messing up the volume levels ? One time i noticed DEE dialing down fine details such as wind and breaking glass etc.., ruining the experience. i had to input manual dialnorm to up the volume. On the other hand, it lifted up ambient noises. I just don't want the DEE to touch the volume.

Mahaaveer commented 1 year ago

This Generates wav file from eac3 disabling the drc ? Can it be used to encode eac3 without the drc ?

Thanks!

pcroland commented 1 year ago

no