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Open Equalizer APO's configuration editor, make sure that your device is the correct one in the dropdown menu on the top right.Paste the following line into it as its only content: Copy: L=R R=L, save the file.create a new file in C:\Program Files\EqualizerAPO\config, for example swapchannels.txt.configure it to attach to your output device (Usually something like: "Speakers - VIA HD Audio" or "Speakers - Realtek HD Audio").There is a software solution called Equalizer APO
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