Convert AC3 to AAC in bulk.
Large AC3 files are supported.

Convert AC3 Learn more about AC3 files to

Video
AC3 to 3G2 Select 3G2 as the output format AC3 to 3GP Select 3GP as the output format AC3 to AMV Select AMV as the output format AC3 to AVI Select AVI as the output format AC3 to FLV Select FLV as the output format AC3 to MKV Select MKV as the output format AC3 to MOV Select MOV as the output format AC3 to MP4 Select MP4 as the output format AC3 to MPG Select MPG as the output format AC3 to MXF Select MXF as the output format AC3 to OGG Select OGG as the output format AC3 to VOB Select VOB as the output format AC3 to WebM Select WebM as the output format AC3 to WMV Select WMV as the output format
Audio
AC3 to AAC Select AAC as the output format AC3 to AIFF Select AIFF as the output format AC3 to FLAC Select FLAC as the output format AC3 to M4A Select M4A as the output format AC3 to MP3 Select MP3 as the output format AC3 to OPUS Select OPUS as the output format AC3 to WAV Select WAV as the output format AC3 to WMA Select WMA as the output format


How to convert AC3 to AAC?

You can convert AC3 to AAC with MConverter in three easy steps:
  1. Choose AC3 files from your device or cloud storage
    At the top of this page, drag and drop your AC3s.

    Alternatively, click on the Browse box to select files with your device's file picker, or copy and paste an AC3 file by pressing Ctrl+V (or ⌘+V on Mac).

    MConverter can easily import AC3s from Google Drive, OneDrive, and Dropbox.

    Converting a folder with AC3 files to AAC is also supported: simply paste, drag and drop it, or use the ADD FOLDER button.
  2. Click or tap on AAC from the list of target formats
    You could also use the search box at the top right to quickly find the format you need, whether it's AAC or something else.
  3. Get your AAC files after MConverter has finished processing them
    Click on DOWNLOAD ALL to save your AACs to your default downloads folder, or select SAVE TO to choose another location.

    You can also configure automatic file downloads during the conversion process or in the settings menu. When enabled, each AAC file is downloaded as soon as its conversion is complete, without waiting for the others to finish.

    If supported by your device, you'll see a Share icon, allowing you to directly send converted files to other apps.

About the formats

File extension .ac3
Category Audio file formats
Developed by Dolby
Mime type audio/ac3

Format description

AC3 files represent the Dolby Digital audio codec, which can include up to 6 audio channels (DD 5.1 surround sound with subwoofer output). Such files are often used for cinemas, DVDs, and game consoles.
File extension .aac
Category Audio file formats
Developed by Fraunhofer Institute, Nokia, Dolby, AT&T, Sony and others
Mime type audio/aac

Format description

AAC files are audio files using Advanced Audio Coding compression. AAC is a lossy format, meaning the audio quality remains almost the same as the original source. The slight loss leads to the audio files taking up less space, which makes them ideal for music streaming or when bandwidth is limited. AAC is superior to MP3 for handling frequencies above 16 kHz. The encoding efficiency for transient and stationary signals is also better when compared to MP3.



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