Question 1

How do I convert an M4A file to MP4?

Accepted Answer

Drag your M4A file onto the box above, or click Select file to choose it. Choose a picture, a shape and a background, or keep the ones chosen for you. Click Convert and wait for the progress bar to finish. Click Download to save the MP4 video.

Question 2

Will my M4A file's cover art be used?

Accepted Answer

Yes. If your M4A file has cover art, MakeAudio uses it automatically and shows it on the page as soon as you add the file. You can choose your own JPG, PNG or WebP picture instead. Without a picture, the video shows the title and artist from the file's tags on a black or white background. If the file has no title, its file name is used.

Question 3

Will the sound quality change?

Accepted Answer

No. M4A files hold AAC sound, which is what video apps expect. MakeAudio copies it into the video exactly as it is, with no re-encoding. Surround sound is mixed down to stereo, and sound recorded above 48 kHz is brought down to 48 kHz. Instagram doesn't accept anything beyond that.

Question 4

How big will the video be?

Accepted Answer

The video is only a little bigger than your M4A file, because the sound is copied as it is. The picture doesn't move, and it adds only about 0.25 MB per minute of video.

Question 5

Why isn't my file accepted?

Accepted Answer

This page accepts M4A files, whose names end in .m4a. Check the end of your file's name. For other audio, use the matching page: MP3 to MP4, WAV to MP4, AAC to MP4, FLAC to MP4 or OGG to MP4. Audio to video accepts all of these formats.

Question 6

Can I make a video from only part of the M4A file?

Accepted Answer

This page uses the whole file. To use one part, cut it first with Trim M4A file, and then convert the shorter file here.

Convert M4A to MP4

Frequently Asked Questions

Frequently Asked Questions

How do I convert an M4A file to MP4?

Will my M4A file's cover art be used?

Will the sound quality change?

How big will the video be?

Why isn't my file accepted?

Can I make a video from only part of the M4A file?

Which shape should I choose?

Will the video work on YouTube, Instagram and WhatsApp?

How long does it take?

Can the video show a moving waveform or several pictures?

Is it free, and are my files uploaded?

Does it work on phones, and is there a size limit?