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How to determine if my Realtek Audio sound card microphone is mono or stereo

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HP ENVY Desktop - 750-114
Microsoft Windows 10 (64-bit)

Hello, is there an easy way to determine if the Raeltek HD microphone jack is stereo? I am looking to hook up a turntable into it like I did on my last HP. It does work but doesnt sound good, thinking it my be 2 channel mono, just need to verify. If so can anyone recommned an easy solution without a pre-amp? Like replacing the internal sound card etc? Thanks in advance

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Hey there! @KurtieP


On the taskbar right click on the audio icon and left click on sounds from the list select Recording tab, you may notice an option called Stereo Mix. If you don’t have this option, it means your sound card doesn’t support the feature. If you see the stereo mix option from the list right click on it and select enable then click on apply and click on ok to save changes.


Please find the audio card specifications below.

  • Audio Codec: ALC3863-CG

  • 5.1 channel support

  • Audio jack presence detection

Refer the product specifications page of the PC to know more information. Click Here


Check if mono audio is enabled on the PC.


Click the Windows Start button and select the “Settings” icon. Next, choose the “Ease of Access” tile visible under the Settings window.

Now, click “Other options” in the sidebar and scroll down to the bottom of the window. There, you’ll find “Mono audio” option displayed in Audio menu. Set it to “OFF”.


Also, If you have audio issues uninstall the audio drivers from the device manager and install the latest version of audio drivers and BIOS from the links below.


Update the audio drivers using this link. Click Here


Also, update the BIOS using this link. Click Here

Is the loudness equalization off? If not, please:
Right, click the speaker icon
select 'Playback Devices'. 
Highlight the default device
Click Properties
Click Enhancements tab
Next to 'Loudness Equalization' take out the check mark in the box.
Click Apply
Click OK


Hope this helps!
Have a great day! 🙂


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