VLC converted my video to MP4 with no sound
A common VLC problem: you convert an AVI, VOB, MTS, WMV or other video to MP4 and the result plays silent, or not at all on a phone. Here is why, and a converter that keeps the sound.
- Never uploaded
- No size limit
- No watermark
- Free
Keep this tab open and in front. Browsers slow down background tabs.
Quick answer: To convert a video to MP4 with its sound, drop the file into the tool at the top of this page and press "Convert to MP4". iLoveAudioVideo does the work in your browser, so the file is never uploaded. It is free, with no sign-up and no watermark.
Updated
How it works
- Drop your videoThe file is read on your computer, never uploaded.
- ConvertMany videos convert in seconds with no quality loss; the rest are converted at high quality.
- Download the MP4Plays on Windows, Android, iPhone, Mac and every website.
Why VLC's MP4 is silent
- The original sound is surround, as on DVDs, camcorders and many films. VLC's default MP4 profile writes MP3 sound, which holds only two channels, so the conversion often fails and writes no sound at all.
- The player does not read MP3 sound inside an MP4. Some players and editors expect the standard MP4 sound format and play anything else silent.
- The sound track was turned off in the profile's audio settings, so nothing was written.
Fix it here instead
Drop the original file (not VLC's silent MP4) into the converter above. It writes MP4 with the sound in the standard format every phone, computer and editor plays, deinterlaces camcorder and DVD video, and keeps widescreen DVDs at the right shape. It runs in your browser, so nothing is uploaded.
Or fix it in VLC
In Convert / Save, pick the MP4 profile and click the wrench icon to edit it. On the audio tab, tick Audio, choose MPEG 4 Audio and save. Then convert again from the original file.
Measured, not promised
From our tests on a 2019 Intel MacBook, an Apple M1 and a Windows PC without a graphics card. See all results.
Why your video never leaves your computer
Online video tools upload your file to their servers, process it there, and send it back. That is slow for big videos and costs them money for every minute, so free plans cap your file size or add watermarks, and your video sits on someone else's computer.
Here your own computer does the work, inside this tab. Nothing is uploaded, so there is nothing to cap: no file size limit, no daily limit and no watermark.
Questions
Can I fix the silent MP4 VLC made?
No: the sound is not in it. Convert the original file again.
Which files does this converter take?
MP4, MOV, MKV, WebM, AVI, VOB, MPG, MTS, M2TS, WMV, FLV and 3GP.
Can I convert several files at once?
Yes. Choose or drop several files together. They are converted one after another with the same settings, and you can download each one or all of them in one ZIP.
Is it really free?
Yes. Your computer does the work, so a video costs us nothing to process. No account, no watermark, no limits.
Is my video uploaded?
No. It is processed inside this browser tab and saved straight back to your computer.
Which browsers work?
Recent Chrome, Edge and Safari on a computer. Chrome and Edge are fastest on most machines. Phones work for short videos.
How long does it take?
In Chrome, a one-minute 1080p video took 13–19 seconds on the laptops we tested and about 40 seconds on a computer without a graphics chip. Safari can be slower.
Can I close the tab while it works?
Keep the tab open and in front until it finishes. Browsers slow down background tabs.