Convert MP3 to AC3 online for free
1: Choose multiple local MP3 files or enter the URL of an online MP3 file. 2: Choose "AC3" as target format and set options. 3: Click the "START CONVERSION" button to convert MP3 files to AC3 online.
Choose filesChoose files or enter remote file URLenter remote file URL
Set conversion options (optional)
MPEG-1 or MPEG-2 Audio Layer III
File extension: .mp3
MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players.
Audio Codec 3
File extension: .ac3
Dolby Digital, originally synonymous with Dolby AC-3, is the name for what has now become a family of audio compression technologies developed by Dolby Laboratories. Formerly named Dolby Stereo Digital until 1995, the audio compression is lossy (except for Dolby TrueHD), based on the modified discrete cosine transform (MDCT) algorithm.