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Win7 turns off full-duplex audio mode by group policy

  
        1. First use the computer's own combination key win+R to open the run, then enter gpedit.msc to open the computer's local group policy editor.
2, then in the local Group Policy Editor, expand “ User Configuration & rdquo; - & ldquo; Administrative Templates & rdquo; - & ldquo; All settings & rdquo;, then found in the right pane & ldquo; disable full double Work audio & rdquo; items.
3. Double-click the item and select “Enabled”, you can disable it.
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