New answers tagged stereo
Try to go to the Universal Access or "Accessibility" system preferences. In the audio section you will have an option to play stereo audio as mono. You need to check this box, and your audio will be played as mono.
What you need is that program. http://vb-audio.pagesperso-orange.fr/Voicemeeter/index.htm#DownloadVoicemeeter Choose your output device at first arrow and set up mono at second.
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