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Equaliser APO - Stereo Surround Upmixer

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This was originally being used to upmix stereo using the Realtek DCH Modded Audio Driver (AAF), however it should also work on any other driver, such as Microsoft or other brands.

First download 'Equaliser APO' (totally 100% free), and the latest drivers for your device. Now download my 'E-APO Stereo Upmixer' (link and files updated).
I have renamed my audio device outputs to 'Speakers' and 'Digital', and inputs to 'Microphone' and 'Stereo Mix' for improved identification.

1.png2.png

Install Equaliser APO, when installing you will be asked which APO method to use, try 'LFX/GFX' first, then restart, then try 'SFX/MFX'.
If you are using AAF drivers, make sure you select 'SFX/MFX' and not 'LFX/GFX' with the current drivers.

3.png4.png

Unzip my package, then cut and move the config .txt files to your 'Equaliser APO' config directory: C:\Program Files\EqualizerAPO\Config.
Now open 'Equaliser APO', and select your outputs, in my case that's 'Speakers' and 'Digital' as I renamed them earlier.

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Now you have stereo upmixing on both analogue and digital. [AAF] Digital will use your selected method, DDL or DTS.
Disable the 'upmixer' option in Equaliser APO, if pure direct is needed (still works when on).

6.png

Feel free to modify the files to suit your needs.
 
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If your 'Realtek Audio Console' does not work at all, disable the 'pre-mix' APO, leaving only the 'post-mix' APO. The 'Realtek Audio Console' will now work as intended.
Don't worry if you have already installed the 'pre-mix' APO, simply change the options in the applications configurator, see my first image below.

1.png2.png
 
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Updated to v2

Added LFE gain and filters.
 
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Updated to v2.2

Added stereo detection to the stereo upmixer, stereo is upmixed to 5.1 or 7.1, multichannel is left as it is (even if stereo is played at the same time).
Added override for the above change to allow cases like YouTube, where it connects with 6 channels, with some empty channels. **
Added support for HeSuVi surround virtualizations, and added the current .wave files from version 2.0.0.1.

** Edit: inputChannelCount == 0 to inputChannelCount == 6, and back when done.

1.png
 
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hook

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Hi, I can´t get graphic equalizer in E-APO working. Also stereo upmixer doesn´t work. I have latest AAF drivers, digital output DD. I installed E-APO SFX/MFX, post/pre mix also only post/mix on digital. When I try to change equalizer, sound dissapears. I can only control gain. I was trying with youtube music playing. Can you help? Thanks.
 
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Should be pre-mix and SFX/MFX on all interfaces, else the EQ in the control panel wont work.

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hook

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I realized that any equalizer on DD output digital is not possible. That´s cause of it´s not funcional.
 

hook

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Does E-APO work with DTS 5.1 digital output (SPDIF)?? I´m interested esp. in graphic eq. function.
 
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With the driver I am using or Alans with DTS-DDL (both decoders) works, I've never tried his DD only driver.
 

hook

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With the driver I am using or Alans with DTS-DDL (both decoders) works, I've never tried his DD only driver.
I installed AAF drivers with DTS few minutes ago and got same result. I red somewhere at E-APO pages, that using digital DD/DTS (SPDIF) output with E-APO is technicaly impossible :/
Stereo over SPDIF and equalizer works fine. So I need buy better receiver for surround :D

Thank for discuss.
 
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Lol no, its 100% possible, it just sounds like you have a strange issue, I am using it right now with DTS. Even 'Neo : PC' that comes with DTS expands stereo to 5.1 before sending it to SPDIF.
Right now I am upmixing stereo to 5.1, if I disable E-APO, then it goes back to stereo. I honestly have no idea why your case is unique, plenty of ppl using E-APO.

The EQ in the Realtek Audio Control app also works, even with E-APO on, however in some cases this may be different, depends on your driver.
E-APO doesn't need to support DTS or DDL, your card and driver are the ones that transcode PCM into DTS-DDL.
 

hook

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I don't know a lot about . Could it be in type of my Realtek codec? I think EQ in audio control also didn't work. And mostly i need to use graphic EQ in E-APO for sound improve. I'll try to install everything again tomorrow.
 
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Strange, I don't know what the problem is. Sorry. All E-APO does as an upmixer is split-clone 2 channels of PCM into 6 or 8 channels, your driver should then encode that from PCM to DTS or DDL.

:(
 

hook

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Hi ,I installed drivers again, AAF DCH Optimus Sound + DTS (your edition :) ) Everything works fine, realtek audio console effects, console equalizer, 5.1 in games. But I can´t still manage to work E-APO graphic equalizer. When I set it on, digital output playback sound stops. I can only control preamplification. Weird if real. console EQ works fine. I installed E-APO as pre-mix/SFX/MFX. I need to use better EQ, cause my reciever has poor one. Thanks for any advise how to solve :)

...or is any plugin for DTS, I can get sound more clear (equalizied) than only in console EQ?

Thanks, you´ll have couple of welcome drinks from me :D
 
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