Step 1. Run VLC, click "Media" menu and select "Convert/Save" option.
Step 2. Under "File" tab, click "Add" button to import the video file you want to convert, then press "Convert/Save" button below. BTW, you're allowed to import multiple video files for VLC batch conversion.
Step 3. Choose "Video - H.264 + MP3 (MP4)" in the drop-down list of "Profile" section. Click the "Wrench" icon to open "Profile edition" window.
Step 4. Navigate to "Audio codec" tab, select "MPEG 4 Audio (AAC)" in "Codec" section and change the sample rate to "48000 Hz". Then click "Save" button.
Step 5. Choose a destination to save the converted video file. Lastly, click "Start" button to fix "VLC convert to MP4 no audio" problem.
Note: Since VLC conversion no audio issue may vary depending on different cases, in Step 4, you can also keep the original audio track, select another audio codec and sample rate and try again.
Step 1. Run VLC, click "Tools" menu and select "Preferences" option.
Step 2. Select "All" in the lower left corner to switch to "Advanced Preferences".
Step 3. Type in "ffmpeg" in the search bar in the top left corner, then select "FFmpeg" sub-tab underneath "Input/Codecs" and "Video codecs".
Step 4. Scroll down the list on the right side and head over to "Strict standard compliance" option, and set the value from -2 to 2. It will force a strict standard compliance when encoding. Then click "Save" button.
Step 5. Now go ahead with VLC MP4 conversion, the VLC convert no audio issue should be fixed.
Actually, VLC is just a media player, and video conversion is not its specialty after all. If the above two solutions cannot solve the problem of VLC no audio after conversion, why not hand over this task to a professional conversion application? HD Video Converter Factory Pro is such a handy tool dedicated to simplifying the video/audio conversion work with only three steps. The test results indicate that it can perfectly solve VLC conversion no audio issue. Install the utility and follow the instructions below.
Step 1. Launch HD Video Converter Factory Pro and open "Converter".
Step 2. Drag and drop all video files you want to convert.
Step 3. Select "MP4" profile under "Video" category from 500+ presets on the right side.
Optional. You're allowed to edit video with the basic editing tools or modify video parameters at will.
Step 4. Specify an output folder on the bottom and click "Run" button to fix VLC no sound after conversion.
Honestly, apart from an almighty media player, VLC also serves as a handy video transcoder. However, don't be more optimistic about the conversion result, it's quite common if you run into VLC convert no audio, VLC audio sync or VLC subtitle delay issue. Rather than wasting time on searching for the solution, it's better to turn to a professional and multi-purpose video processing program like HD Video Converter Factory Pro for a quick fix. Hope this post is of great help to you guys. Thanks for reading!