Windows 10: Outputting stereo content on a 5.1 multi-channel audio system

Hello! I already wrote in support of the motherboard manufacturer ASUS about this problem, I was advised to write to Microsoft support. I will duplicate here my question and answer from ASUS support."Hello! I'm having trouble setting up 5.1 multi-channel audio correctly on a new motherboard. Everything works properly, where there is support for 5.1 speakers, everything is reproduced as it should. But where only stereo - only the front two speakers work.///The new motherboard TUF GAMING X670E-PLUS has 5 analog inputs///On the previous PRIME A520M-A motherboard, where there were only 3 input

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How to select PCM stereo output for digital audio S/PDIF jack?

I am looking to upgrade the sound from my PC. I wish to bypass the sound card of my computer by plugging in a digital-to-analog converter (DAC) in a USB 2.0 port. I've learned I can stream digital audio that way by selecting my DAC as the default audio output
device. However, the DAC I am considering also can stream data from the digital optical output on my PC to the DAC. A tech rep for the DAC told me to stream music from both the optical output
and the USB port alternatively and see which sounds better. However, for the DAC to utilize the digital optical jack it must be set to pulse-code modulation (PCM) stereo output.

Hence my problem. I see no menu option for selecting PCM stereo output as opposed to DTS or Dolby multi-channel audio in my sound controls for the optical output (in the "Supported Formats" section of the "Digital Audio S/PDIF Properties" menu. (Microsoft
WMA Pro Audio is also offered in that menu, but I don't know what that is or if it changes the digital optical audio output to PCM format.) I would like to utilize the digital optical output from my PC as the DAC rep suggested if at all possible. Please advise.

 

Only stereo channel available in Speaker setup

Hi, I've updated to windows 10 1803 version. I'm using a dell inspiron 5558 laptop with the latest updated realtek audio driver. I'm unable to find any audio channels other than stereo when going through the following steps. Sound-> Playback-> configure.

The quadraphonic, 5.1 and 7.1 channels aren't available in it. Also using the pre-installed dell audio manager, going through the following steps( Dell Audio-> Speaker/Headphone-> Speaker Setup) only stereo is set by default and there is no other channel
configuration available. I've a 4.1 channel system with a 3.5 mm jack but on connecting that too the channel options aren't displayed.

The bios and all drivers are updated to the latest version.

Can anyone help me figure out what is the cause of the problem?

 

No Audio Output Device is Installed

Hi,

You will need to select Windows 8 from the drop down list while installing the driver in compatibility mode.

I would suggest you to try setting the speaker as default audio output by following the steps below and check if it helps.

1. Right click on the sound icon on the right bottom corner of the taskbar.

2. Select "playback devices".

3. If "speaker" is not set as the default device, highlight it and click "set as default".

5. Save the changes.

Let us know the result.