Windows 10: Soundbar sometimes switches off

I bought an Adelgo 3W soundbar which only requires a USB connector at the beginning of November. It worked well until a week or so ago. Now sometimes when I am listening to something on the soundbar it will stop broadcasting and the sound will come out of the speakers which are integral with my monitors.
I cannot find a website for the manufacturer.
If I try disabling the monitor speakers I suddenly find that the sound stops completely, as if the sound source has been switched to one of the disabled monitor speakers. There are also plopping sound coming from the soundbar occasionally, which did not happen for the first few weeks.
When I go to Settings, Sound and change the Output device sometimes the sound does not move to the newly selected device.

Windows has installed the driver for this soundbar, and if I try to update it I just get a message that the best driver is installed. Uninstalling the soundbar and plugging it back in again does not resolve the problem, nor does rebooting. I have also tried plugging it into different USB ports which does not solve the problem.
Check Disk and System File Checker show no problems and Windows Home has the latest updates installed, (Version 20H2, OS build 19042.685). I am inclined to think that the problem occurred after one of the Windows updates, but maybe I am clutching at straws.
If anyone has any suggestions I could try to attempt to resolve the problem I will be very grateful.

:)

 

LG Soundbar SJ9 shown as SiliconImage

Hi,

Thank you for writing to Microsoft Community Forums.

I appreciate your effort in trying to fix the audio issues on your Windows 10 device.

1. What is the make and model of the computer?
   
2. Are you aware of any recent changes made on the device?
   
3. Which version of Windows is running on your device?
   

You may try the below suggested step and check if the issue still persists.

Method 1

Set LG Soundbar as default play back device

1. Click on Volume icon from the taskbar.
   
2. Click on Sounds and click on
   Playback tab.
   
3. Select LG Soundbar and click on Set as default to check the status of the issue.
   

You may also refer the suggested steps and try to follow the same from the article
Help Library.

I suggest you to refer the article Fix sound problems in Windows 10
for more troubleshooting steps.

If the issue still persists try updating the latest Firmware & Drivers from the
manufacture’s website.

Click on Support section and select the preferred option under
Contact Us to get in touch with the manufacturer support for the further assistance.

Hope it helps.

Muralidhar

Microsoft Community Moderator

 

$250 Soundbar

Unfortunately I can't really budge on 2.5" maybe I could place the soundbar above the TV. Where is the best place to put a soundbar?

 

$250 Soundbar

Vizio makes good soundbars.

the drivers in my Definitive Technology soundbar are 3 1/4" so..