Movie will not play with audio passthrough enabled

[DADAMAJA 3]

So far I have come up with the following.  Looking for the best way to expand stereo to surround and spread to center.

 

##Conditional Auto Profiles##
[profile_for_music_files]
profile-desc="profile for music files"
profile-cond=(filename:match"%.mp3$" or filename:match"%.flac$") ~= nil
af=lavfi=[anequalizer=c0 f=31.25 w=100 g=-0.60 t=1|c1 f=62.5 w=100 g=-3.72|c2 f=125 w=100 g=-2.52|c3 f=250 w=100 g=-1.92|c4 f=500 w=100 g=-2.40|c5 f=1000 w=100 g=-2.52|c6 f=2000 w=100 g=-2.76|c7 f=4000 w=100 g=0.96|c8 f=8000 w=100 g=0.84|c9 f=16000 w=100 g=1.92]

[Guest]

I would use the surround filter for that:

https://ffmpeg.org/ffmpeg-filters.html#surround

And audio properties for setting the condition

https://mpv.io/manual/master/#command-interface-audio-codec

And add channel count as stereo. You don't want 5.1 flac being remixed 

Edited March 2, 2023 by generiq

[Guest]

Your entry for audio device needs to use the name not the hex. The hex will change, the name won't 

I should probably check your mpv.conf

[Guest]

So something like this:

audio-device=wasapi/AMD HDMI Output (AMD High Definition Audio Device)

[Stereo to surround]
profile-cond=(p["audio-codec-name"]=="flac" or p["audio-codec-name"]=="mp3") and p["audio-params/channel-count"]==2
af=surround=chl_out=5.1

The auto-profiles are always at the bottom of the conf

So only stereo mp3 and stereo flac would be filtered to surround

[Guest]

Or are you wanting all channels to output the exact same sound? If yes, just use the upmix option in the Theater settings. Which uses pan:

https://ffmpeg.org/ffmpeg-filters.html#pan-1

Edited March 2, 2023 by generiq

[DADAMAJA 3]

Thanks for the tips.  I changed the audio-device to what you suggested and set my profile like following:

[Upmix_and_EQ_Music]
profile-desc="Upmix music to 7.1 and EQ"
profile-cond=(p["audio-codec-name"]=="flac" or p["audio-codec-name"]=="mp3") and p["audio-params/channel-count"]==2
af=surround=chl_out=7.1 
af-add=superequalizer=1b=[10]:2b=[10]:3b=[10]:4b=[10]:5b=[10]:6b=[10]:7b=[10]:8b=[10]:9b=[10]:10b=[10]:11b=[10]:12b=[10]:13b=[10]:14b=[10]:15b=[18]:16b=[15]:17b=[20]:18b=[15]

I am playing around with the superequilizer and it all seems to be working like I want it.  Thank a million for all of your help.  Hopefully this thread will help someone out in the future.

[Guest]

Groovy. Remember that it will affect all files that have matching audio. So if a movie has stereo flac, it will filter that audio, too. Which, I imagine, will be a good thing.

Edited March 2, 2023 by generiq