Windows 10 Cumulative Update KB4515384 introduced a handful of issues in systems running May 2019 Update. There were numerous reports that the patch breaks audio in various games. The audio bug mainly affects games such as Apex Legends, PlayerUnknown’s Battlegrounds, WoW Classic, and Overwatch. Moreover, the players of other games experienced an extremely low volume.
After multiple reports, Microsoft has now acknowledged the issue in a support document. The company confirmed that a compatibility change in Windows 10 version 1903 was the major reason that caused the issue in the first place.
Microsoft has received reports that audio in certain games is quieter or different than expected after installing this update. At the request of some of our audio partners, we implemented a compatibility change that enabled certain games to query support and render multi-channel audio.
Microsoft further continued that the company has now reverted the compatibility change based on user feedback. The tech giant warned its users that the installation of the KB4515384 may trigger audio issues in some games.
Due to customer feedback, we are reverting this change as some games and some devices are not rendering multi-channel audio as expected. This may result in games sounding different than customers are used to and may have missing channels.
Workaround For KB4515384 Abnormal Audio Glitch
1. Change Control Panel Settings
Unlike other issues with this update, Microsoft has suggested a temporary solution to fix this issue. Here are some quick workarounds for those who are experiencing abnormal audio after installing the patch.
- Launch the particular game that is affected by this issue.
- Navigate to the Settings menu and search for the multi-channel audio option.
- Disable the option to fix the audio issues.
Note: You might not find the multi-channel audio option in some games. Some Control Panel tweaks can fix the issue in such cases.
- Open Control Panel and search for third-party audio device control panels.
- You need to disable Virtual Surround Sound or Multi-channel audio options.
2. Change Audio Quality
Some users confirmed that they resolved the audio issues by changing the value of audio quality to 16 bit. Follow these steps to change the audio quality.
- Use the Windows Search to search for Sound Settings and open it.
- Go to the Related Settings section and click Sound Control Panel option.
- Navigate to your audio device, right-click on it and select Properties.
- Click the Advanced tab and set the value of audio quality to 16 bit.
- Click the OK button to apply the new settings.
Although it does not fix the problem on a permanent basis, we hope that a patch will be available very soon.