(Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3

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(Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3 Empty (Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3

Post by MNEMENT Sat Jan 15, 2022 12:25 pm

Solution
(Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3 Sound_10
Thanks! HUGE THANKS to wise PRO Admin! You Definitly must have a very good Karma! You make a life of people better!) Cheers!


Hello, I’m trying a half of month to set right preferences for K-Lite properly bitstream/encode AC3,DTS/eAC3 for playing movie’s audio tracks right. So now I decided to asking for help here. In advance: Thank you anybody, who read this, for your time. I realy hope someone could help.
I will write 2 versions of problem: Short and Long. Maybe I just can’t find the solution and anybody already can say to me where and what I should correct. Short versions for them. Long for those who need detalisation of problem with log files etc.
Short version
Passthrough AC3 is ok. (DTS I didn’t try, but think it’s ok)
When I play movie I use AC3Filter to encode eAC3 to AC3 via SPDIF and center channel doesn’t work. In AC3Filter I see this  (Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3 Main11

Audio track from the movie:
My receiver: yamaha rx-v450 (I have 5.1 speakers system)
Windows 10x64 Pro (version 21H1 ; 19043.1288)
Audio driver Realtek(R) Audio 6.0.9088.1
Motherboard Asus PRIME X570-PRO
CPU AMD 5950X
Video card MSI GeForce RTX 3090
K-Lite Codec Pack 16.7.3 Mega
I tried option “convert to AC3 with MPC-HC with LAV audio decoder and ffdshow audio processor” and “Convert to AC3 with AC3Filter audio decoder” from FAQ (Configuration 3a; 3c).
When it was 3a (ffdshow audio processor) my receiver show PCM signal (2 channels). Tray icon show LAV audio decoder work, I don’t know how to check if ffdshow audio processor was working correct.
Then I reinstall K-Lite and change (during installation) configuration to use AC3Filter. And see the result. Surround sound encoded well, but Center and LFE doesn’t work (see screenshot above)

LONG version (detalisation)

codec_log:


MPC-HC preferences:


AC3Filter:
Decoder info:
AC3Filter Preferences:


Last edited by MNEMENT on Mon Jan 17, 2022 7:47 pm; edited 1 time in total (Reason for editing : Solution)

MNEMENT

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(Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3 Empty Re: (Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3

Post by Admin Sun Jan 16, 2022 9:20 pm

Problem seems to be in the "Mixing matrix" of your AC3Filter settings. There should be a 1 in every box along the diagonal, so input channels are identical to output channels.

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(Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3 Empty Re: (Solved)AC3Filter mute(disable) Center channel when SPDIF encode AC3 from eAC3

Post by MNEMENT Mon Jan 17, 2022 7:53 pm

Admin wrote:Problem seems to be in the "Mixing matrix" of your AC3Filter settings. There should be a 1 in every box along the diagonal, so input channels are identical to output channels.
THANK YOU BIG MAN! I wish you the same GOODFeeling that I have right now!!! THANK YOU!
PS Actually it's interesting why this thing happened. What is the reason to turn off 2 channels, when Auto matrix? But the most important thing that it has a solution!)

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