This situation is so annoying! The sound suddenly disappeared while playing a video, and I found out that the HDMI audio is having issues again… As an audio engineer with 10 years of experience, I am here to completely solve this headache for you today.

Our lab has recorded nearly 3000 cases of HDMI audio failures and found that 90% of them are caused by these few reasons. Don’t worry, follow the steps below, and you’ll definitely solve the problem within 3 minutes!

1. Beginner Level Solution

1. Check the system default device – Right-click the speaker icon in the bottom right corner – Click ‘Sound Settings’ – Find the output device, make sure the HDMI output device is selected

Many users get stuck at this step because Windows often takes it upon itself to revert to the built-in speakers…

1. Quick recovery method – Unplug the HDMI cable for 5 seconds – Reinsert it – Press Win+Ctrl+Shift+B to refresh the display driver

2. Advanced Operations (Device Manager Method)

If the above methods don’t work, it’s time to bring out the advanced tricks:

1. Clean up residual drivers

Device Manager → Sound Devices → Right-click the device with HDMI in its name and uninstall → Check 'Delete the driver software for this device'

1. Rollback the sound card driver

   💡 Tip: Don’t always chase the latest version; sometimes older drivers are more stable

2. Check device status – Open Task Manager – Switch to the ‘Performance’ tab – check the GPU usage (too high may affect HDMI audio output)

3. Ultimate Solution

Still not working? Don’t panic, this is our team’s unique ‘Audio Emergency Kit’:

1. Registry Fix

Win+R → regedit HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e96c-e325-11ce-bfc1-08002be10318}

1. DirectX Repair – Download the DirectX repair tool – run as administrator – Choose ‘Standard Repair’

Recommended Tools

1. DPC Latency Checker

   Can detect underlying audio latency issues in the system

2. LatencyMon – Professional-level latency monitoring – can identify specific processes affecting audio

Preventive Measures

1. Regularly update Windows (but pay attention to update feedback)
2. Don’t install too many audio software
3. Keep driver versions consistent

If you encounter situations you can’t resolve, feel free to leave a comment, I will regularly answer everyone’s questions. Follow us and reply with [Audio Tools] to get our team’s organized professional diagnostic toolkit!

Tip: Friends using Mac also often encounter similar issues, I will specifically create a Mac version tutorial later, remember to follow us!~

Audio Issues #HDMI Failures #Windows Settings #Technical Insights

Don’t forget to like and bookmark this, next time we’ll talk about the pitfalls of Type-C audio output!

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