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Top 6 Ways to Convert AC3 to AVI Easily on Windows/Mac

by Christine Smith • 2024-01-11 10:28:51 • Proven solutions

AC3 is an audio format that offers top-quality surround audio used in Dolby audio files and DVDs. However, sometimes you may need the services of an AC3 to AVI converter to enjoy the audiovisual content on your PC. So, keep reading to learn the perfect AC3 to AVI video converter for your audio to video conversion tasks.

Part 1. Step-by-Step Guide to Convert AC3 to AVI on Windows/Mac

Wondershare UniConverter is the best desktop app to convert AC3 to AVI or any other video format losslessly. It’s simple to understand and allows you to encode AC3 to AVI, MP4, WebM, MOV, and other video formats. Before converting, Wondershare UniConverter lets you merge, trim, adjust volume, and perform other editing tasks on your AC3 file. Apart from AC3, this app also supports MP3, FLAC, OGG, AAC, AU, WAV, and other audio formats.

Wondershare UniConverter – Best AC3 to AVI Converter

  • It supports more than 1000 file formats, including AC3, AVI, MP4, MP3, MOV, and more.
  • Allows users to convert audio to videos and vice-versa like AC3 to AVI.
  • Users can edit AC3 files before converting by trimming, compressing, merging, etc.
  • It features an excellent video editor for trimming, cropping, merging, rotating, adding subtitles, etc.
  • It downloads AC3 and AVI from 10000+ video-sharing sites, including Vimeo, YouTube, Likee, etc.
  • 30x faster than any desktop AC3 to AVI video converter.
  • It’s the best AC3 to AVI encoder for Mac OS X 10.9+ & Win 10/8/7.

Below are the steps to convert AC3 to AVI using Wondershare UniConverter:

Step 1Upload the AC3 audio file.

Visit Wondershare UniConverter’s official website and download the app. After that, install and run it, then select the Video Converter tab. Now drag and drop the AC3 file on the converter or press the Add Files button to upload your local AC3 file.

Upload the AC3 audio file

Step 2Choose AVI as the output format.

Next, click the Output Format menu at the bottom of the screen, then choose AVI under the Video section. You can also choose the video resolution before clicking Start All to convert AC3 to AVI quickly and easily. Click the Finished button to find the converted AVI video.

Choose AVI as the output format

Part 2. 5 Solutions to Convert AC3 to AVI Online and Free

If you’re using a mobile phone or shared computer, you may not be able to install Wondershare UniConverter. Therefore, use these five online AC3 to AVI converters.

1. FreeFileConvert

FreeFileConvert is one of the most straightforward online AC3 to AVI converter apps you can find. Here, it will only take you three steps to encode AC3 to AVI. Just load your AC3 audio, choose AVI as the target format, and start converting. Meanwhile, remember that this website supports batch conversions of up to five AC3 files. However, you can’t exceed the set 300MB limit.


  • Super-easy to use.
  • It supports batch conversions.


  • No audio/video editing tools.


2. is another free and simple-to-use AC3 to AVI converter. With this online conversion app, you don’t need to worry about the inconvenient buttons, as you only need to upload the audio and let it convert to AVI automatically. But simplicity is nothing without file editing tools.


  • It supports automatic conversions.
  • Super-fast file processing speed.


  • No file editing features.



We can’t discuss the best audio to video converters without mentioning Online-Audio-Convert. Like the rest, this app is amazingly simple to use. With it, you can convert AC3 to AVI, MOV, MPEG, FLV, MP3, MP2, etc. Interestingly, it allows users to preset the bitrate, file size, resolution, codec, etc. Furthermore, you can convert AC3 files from URL links and cloud storage.


  • It supports multiple output formats.
  • Multiple file customization tools.


  • Ad-infested UI.

5. AConvert

Finally, use AConvert to convert AC3 to AVI or any other video and audio format. This straightforward website is fast and allows you to add AC3 videos from Dropbox, Google Drive, URL, and cloud. Before converting, this app allows you to set the frame rate, bitrate, sampling rate, and video size. Just be careful with the adverts.


  • Converts anything to anything.
  • It offers basic editing services.


  • Ad-supported website.


Part 3. Extended Knowledge for AC3 and AVI Format

File Format AC3 AVI
Developed By Dolby Laboratories Microsoft
Description AC3 is a standard audio file created by Dolby Digital to offer a surround sound experience. In other words, it allows separate audios to be played on each speaker of your home cinema setup. Also, AC3 uses lossy compression. AVI (Audio Video Interleave) is a container format used to save audiovisual data encoded in multiple codecs, including XviD and DivX. Typically, AVI uses less compression than popular formats like MOV and MP4. This gives it a large file size with excellent video and audio quality.
Associated Programs MPlayer, Windows Media Player, Nero 2019, Apple QuickTime Player, File Viewer Plus Windows Media Player, VLC, Microsoft Movies & TV, Kodi, Apple QuickTime Player, Google Drive


So, the next time you want to convert video to audio or vice-versa, use these six excellent AC3 converters. But as you can see, the online options are pretty limited. Therefore, use Wondershare UniConverter for the best AC3 to AVI conversion experience.

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Christine Smith

Christine Smith

chief Editor

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