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Equaliser APO - Stereo Surround Upmixer

sakenfor

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Can this plugin fill rear or side when 5.1 is played? So it is 7.1, just copied rear to side or vice versa.
Am trying to find such plugin for some time but no luck.
 
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Its possible to make a setup that does, you would do 50% of front and 50% of rear, to create a side, from 5.1.

1669892842918.png
1669892862597.png
 
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sakenfor

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I was not precise, sorry, I meant, a plugin to detect if side or rear is used, and then to auto fill.
 

Stone-D

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There are no 'plugins' - just edit the text files or use the editor.

A total guess because I don't have a 7.1 system, but in the upmixer.txt file you could have:

If: inputChannelCount == 2 or inputChannelCount == 0
Copy: L=L R=R C=0.25*L+0.25*R LFE=0.5*L+0.5*R RL=L RR=R SL=L SR=R

If: inputChannelCount == 6
Copy: RL=SL RR=SR
The first deals with stereo, the second with existing 5.1 content.

For movies, you could also use AC3Filter. It's not been updated for a loooong time but it's still fully functional.
 

sakenfor

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Channel count "if" always gives same number of channels (confirmed in another discussion on main download site), fixed to how it is setup in the audio driver - not related to actual audio stream played.
ACfilter i tried but i might again, thought it can't fill in how i want it to.

There are vst plugins, tried finding there too but no luck. I guess some audio cards can do it, which is what i plan on gettng anyway, to replace onboard.
 
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I defaulted crossover to a more common standard. Note the preset is a default, it can be changed, added to, bits removed, do as you like.
 
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Channel count "if" always gives same number of channels (confirmed in another discussion on main download site), fixed to how it is setup in the audio driver - not related to actual audio stream played.
That's only true for the post-mix stage, which happens in the windows audio mixer just before it's sent to the audio device, so of course it has to match what the device is configured for.

In the pre-mix stage, which happens individually in each application, the channel count will be equal to what the application chooses to output. It's entirely up to each application what happens here. Some are well-behaved and choose speaker layout closest to the media being played. Some are badly engineered to just always choose the maximum, and only fill a few of the channels. Best solution is use better software.
 
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You also get PCM 'pre-amp' (no hardware), this will however be limited to a degree by hardware (max output):

1681387944529.png

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32bit float potentially could be used as a PCM amp, no hardware.
 
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Updated
  • Increased crossover frequency, added 14% LFE gain, adjust to suit.
  • Removed a redundant channel input for the upmixer.
You can add side channels if you are using 7.1.
 
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EAPO.png Audacity.png
Youtube (WB).png

Restart the computer to make sure adjusted effects apply properly (can be odd at times).
 
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If you are using this upmixer with my DTS DCH, due to the fact that E-APO will take over SFX (as intended), the Realtek SFX will no longer update the endpoint (not needed).

First disable the endpoint (SPDIF, Speakers, Headphones), then use FX Config to get-copy the endpoint GUID, then edit and restore the relevant .reg.
Once restored, setup Equalizer APO as normal (following the guide in post 1), enable the device, then restart.

DTS Settings.png

E-APO on SFX only. The 'DTS Settings' file can be found here.

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E-APO SFX - DTS DCH.png
 
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If you are using this upmixer with my DTS DCH, due to the fact that E-APO will take over SFX (as intended), the Realtek SFX will no longer update the endpoint (not needed).
Speaking of upmixers, have you ever tried the Nugen Audio Halo Upmix VST(3)?
The absolute best in its class IMHO.,
Would love to hear your opinion about it...
 

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DTS DCH Config updated, added restore (DTS + Realtek SFX), in case E-APO is uninstalled (other).
If you are already using E-APO, simply run the configure.reg, and reboot.

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End result (DTS DCH):

[SPDIF]: E-APO (SFX) >> DTS APO4 - Realtek (MFX) >> DTS APO4 - DTS Encoder (EFX).
[Analogue]: E-APO (SFX) >> DTS APO4 - Realtek (MFX) >> DTS APO4 - Realtek (EFX).

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Note the config is essentially 'True Sound Stereo Surround' (+ Centre assist & LFE crossover).
Feel free to post your own config, or other, such as VST, ideally SFX only.
 
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