AC3 to MP3
Convert AC3 files to MP3 right in your browser. Your files never leave your device.
- No upload
- No account
- Free, no watermark
Drop AC3 files here
Converted on this device. Nothing is uploaded.
How it works
How to convert AC3 to MP3
Add your files
Drop AC3 files into the box above, or press Choose files. You can add as many as you like.
Wait a moment
Each file is converted on your device as soon as you add it. Adjust the settings first if you need to.
Download
Save each file on its own, or download everything at once as a ZIP file.
Why
Why convert AC3 to MP3?
AC3 (Dolby Digital) audio from DVDs and TV recordings does not play in most music apps. Converting to MP3 mixes the surround channels down to stereo so it plays anywhere.
Compared
AC3 and MP3 compared
| Property | AC3 | MP3 |
|---|---|---|
| Full name | Dolby Digital (AC 3) | MPEG-1 Audio Layer III |
| Compression | Lossy, up to 5.1 channels | Lossy |
| Size per minute | About 3 MB at 384 kbps | About 1.4 MB at 192 kbps |
| Best for | Surround sound on DVDs, Blu ray discs and TV broadcasts | Music, podcasts and voice recordings to share |
| Compatibility | Home cinema systems, VLC and TVs; phones, many players and editors cannot play it | Plays on every device, car stereo and app |
Formats
About the formats
What is AC3?
AC3 is Dolby Digital audio, the surround sound format of DVDs, many Blu ray discs and digital TV. It usually holds 5.1 channels. When converting to a stereo format such as MP3, the surround channels are mixed down to left and right.
What is MP3?
MP3 is the most widely supported audio format in the world. It uses lossy compression to make files roughly a tenth the size of uncompressed audio. At 192 kbps or higher most listeners cannot tell it apart from the original.
Questions
Questions and answers
Is it safe to convert my files here?
Yes. ConvertOrino converts your files with code that runs in your own browser. Nothing is uploaded to a server, nobody else can see your files, and they are gone as soon as you close the page.
What happens to 5.1 surround sound?
MP3 is a stereo format, so the six surround channels are mixed down to left and right, including the center channel with the dialogue.
Are the title, artist and album kept?
Yes. Tags such as title, artist, album and year are copied to the new file wherever the format can store them. Embedded cover art is not copied.
Is the AC3 to MP3 tool free?
Yes, completely free. There is no sign up, no watermark and no limit on the number of files.
Is there a file size limit?
There is no fixed limit, because your own device does the work. Very large files are limited by the memory of your device. Phones handle files of a few hundred megabytes, computers handle much more.
Does it work on iPhone, Android, Mac and Windows?
Yes. It works in any modern browser, including Safari, Chrome, Edge and Firefox, on phones, tablets and computers. Nothing needs to be installed.
Does it work offline?
Yes. Once the page has loaded, the conversion works without an internet connection, which also proves that your files are not sent anywhere.
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