Select the device and Click 'Update Driver Software. Extract the cab file to a directory using winrar I am using these and confirm that they work, but since they are a CAB file, you will have to do the following: If you don't hear sound from both, then most likely, you need to update your realtek audio drivers. Open Realtek HD Audio Manager C:Program FilesRealtekAudioHDARtkNGUI64.exe Click on the settings cog in the top right corner of RealTek HD Audio Manager and then select 'Make front and rear output devices playback two different audio streams simultaneously'.
You then click the arrow button to the right of that, and it will play a sound, first through the left audio channel, and second, through the right audio channel. Then, choose the Speakers tab and confirm under the Speaker Configuration that is says Stereo. Since you are using Realtek Audio, you should be able to open the Sound Manager by clicking the Show Hidden Icons in the taskbar, looking at the popup window of icons, and right-clicking on the orange 'speaker' icon. If Realtek HD Audio Manager is missing in Windows 10, you can try to update Realtek HD Audio Driver.
