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Windows 7: Realtek Equalizer Settings

29 Dec 2013   #31

Windows 8.1 Professional 64bit

You just saved my ass here Mr

Now everytime I upgrade my driver I'll never lose my presets! Thanks a lot!

My System SpecsSystem Spec
05 Jan 2014   #32
Vaio 7

Windows 7 x64 Home Premium

Quote   Quote: Originally Posted by Itbankrock View Post
You just saved my ass here Mr

Now everytime I upgrade my driver I'll never lose my presets! Thanks a lot!


Glad to help!!

Best regards,
My System SpecsSystem Spec
18 Jan 2015   #33

Technical information about custom profile storage in the registry

After researching this issue using references in this post, process monitor and registry export before and after comparisons, I am confirming that the settings are stored in the registry at roughly: [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Render\<GUID>\FxProperties].

This information is true for Windows 7 x64 and Windows 8.1 x64.

Here are some notes about this, in case you want to migrate your equalizer settings to a new machine, new OS or OS/driver reinstall. FxProperties Value "{8d17a413-26d1-47e0-970b-5b0ea2d804bd},0" identifies how many custom profiles you have saved. For example, 5 custom profiles will have a value like "hex:41,00,20,00,01,00,00,00,00,01,02,03,04", with the last 5 entries pertaining to these profiles (indexes 0,1,2,3,4). One profile will have a value like "hex:41,00,20,00,01,00,00,00,00" (index 0). Please keep the indexes in mind for the remainder of this post.

All profile names are stored in the values like "{69203b66-c559-499c-bb5f-f54563cd7d59},<index>". All equalizer settings are stored in values like "{36033203-cbc4-4960-9b48-490166ca34c9},<index>". You can easily search the renderers and find these (see the powershell script below).

Some other registry items of interest (for the record):
"{4b361010-def7-43a1-a5dc-071d955b62f7},5"=dword:00000000 (when NONE is selected)
"{4b361010-def7-43a1-a5dc-071d955b62f7},5"=dword:000003ff (when custom profile is selected).
"{4b361010-def7-43a1-a5dc-071d955b62f7},6" is set to the currently chosen equalizer data which has been chosen (as found in value "{36033203-cbc4-4960-9b48-490166ca34c9},<index>").

In order to migrate your settings from one system to another, I suggest the following process.
1) Export your Render registry key on the old system (or as a backup).
2) Create a custom equalizer setting on your new system in the Realtek app with any equalizer graph. Select <NONE> as the current profile.
3) Close the realtek app (IMPORTANT)
4) Backup your new Render registry key.
5) Use the powershell script (below) to find the render device guid on the new system
6) Update the registry with the new values for "{69203b66-c559-499c-bb5f-f54563cd7d59},0" and "{36033203-cbc4-4960-9b48-490166ca34c9},0".
7) Open the realtek app and select your custom profile to have it take effect.

Here's a powershell command to quickly identify which device guid has a custom profile stored (index 0):
# Identify all realtek audio rendering device entries with at least one custom equalizer profile
(get-childitem 'Registry::HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Render\' -Recurse |? { $_.GetValue('{69203b66-c559-499c-bb5f-f54563cd7d59},0') } |% { $_.Name; });
My System SpecsSystem Spec

18 Jan 2015   #34


It looks like I may have duplicated much of Dwarf's information, but in a different way. I hope it helps either way (particularly the powershell script)!
My System SpecsSystem Spec

 Realtek Equalizer Settings

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