VideoLAN Media Player is a comprehensive media player that supports numbers of multimedia files, including DVDs, Audio CDs, VCDs, etc. It's also easy to edit videos easily and the program can be applied to different OS, like Windows, Linux and Mac OS X. VLC's functional and stable features are favorite by many users. However, some people might come across an annoying issue when playing videos with VLC media player, that the VLC player play no sound suddenly. Several reasons are speculated and there are lots of solutions put forward to improve the program. Here I will make a conclusion on reasons and solutions on VLC no sound issue.
Reasons for VLC No Sound
You may disable system speaker accidently, or unwarily mute VLC volume. Launch VLC, click "Tool" at the top menu bar > select "Preference" at the end of the pull-down list> "Audio" > "Enable Audio".
How long have your VLC media player not been upgraded? This may trigger incompatible playback problems, such as no output audio.
Sometimes, may be the default output module not suit for your computer.
For example, if a MP4 file contains a VLC incompatible video codec, you will fail to apply videos to VLC media player, or just no sound.
Solutions to Solve VLC No Sound Problem
Open "Control Panel" > click "Hardware and Sound" > "Adjust system volume", you can see a list of audio devices, right-click device and select "Enable" to enable VLC media player.
Usually, the latest version will fix bugs and optimize program. So you are better update the VLC media player. Click "Help" rightmost > choose "Update". Or you can just uninstall it and download a latest version of VideoLAN.
Go to "Audio" > switch "Audio Device". Here the audio device should be already set by default. According to the device you are using, you need to change it to "Speakers / Headphones". If you are using a Headphone, then select "Independent RTC Headphones".
Go to "Preference" page for advanced setting. For "Output" section, change "Output module", and click drop-down menu besides it, select "WaveOut Audio output". If VLC still has no sound, go the bottom of interface, try to "Reset Parameter".
If your video carries a VLC incompatible codec, you can convert video format with Video Converter Ultimate. This is a professional video converter that can transform MP4 to MKV, WMV, AVI, etc. You don't need to worry about losing quality or wasting time.
How to convert files? First, install Video Converter Ultimate, then drag and drop any video files as you required to import to the program. Second, select a designated format from right-side column that lists 200+ format options. The last step, click "Convert" button and you can start converting MP4 to any formats you want.
Hope solutions here can help you out of trouble. If you have other methods that can solve VLC no sound issue, please leave a comment here and let people knows.