AC3 → MP3 / online converter

AC3 to MP3 Converter

Convert Dolby Digital (AC3) audio to MP3. Surround sound is mixed down to stereo.

01 / how to

How to convert AC3 to MP3

01

ADD YOUR AC3

Drop the AC3 file into the box above or choose it from your device.

02

CONVERT TO MP3

MP3 is already selected. Press Convert and wait a few seconds.

03

DOWNLOAD

Save the finished MP3 file. The original is deleted from our server.

02 / what you get

What happens to your data

Kept

  • Dolby Digital stereo and 5.1 surround are supported
  • Saved as MP3 at 192 kbps, about 1.4 MB per minute, a good balance of quality and size
  • Plays on every phone, car stereo and player
  • 5.1 surround sound is mixed down to stereo, so you hear every channel

Good to know

  • AC3 files carry no title, artist or album tags, so there is nothing to copy over.
  • MP3 supports 48 kHz at most, so a 96 kHz file is reduced to 48 kHz, and surround sound (5.1) is mixed down to stereo.
  • Both formats compress with quality loss, so every conversion costs a little quality. Keep your AC3 original.

03 / formats

AC3 vs MP3

AC3

An AC3 file is Dolby Digital audio, the sound format of DVDs, TV broadcasts and many home-theater systems. It holds stereo or 5.1 surround and is usually pulled out of a video file.

Used in: DVD & TV audio · Home theater · Surround sound

MP3

An MP3 file is the most common compressed audio format — small file size, works everywhere, though it loses some audio quality in the process. It's what you'll get from most music downloads, podcasts, and voice recordings.

Used in: Music downloads · Podcasts · Universal playback