Convert AC3 to FLAC
Fast, free AC3 to FLAC conversion — works in any browser
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ac3
AC3 — Dolby Digital Audio (5.1 Surround)
| File extension | .ac3 |
|---|---|
| File category | audio |
| Programs | VLC media player Windows Media Player Kodi MPlayer foobar2000 |
| Tech description | https://en.wikipedia.org/wiki/Dolby_Digital |
| MIME type | audio/ac3 |
| Developer | Dolby Laboratories |
AC3 is the audio codec used in Dolby Digital, a surround sound standard developed by Dolby Laboratories and introduced in 1991. AC3 files typically carry up to 6 audio channels — front left/right, center, surround left/right, and a low-frequency effects (LFE) subwoofer channel — commonly known as 5.1 surround sound. The format is widely used on DVDs, Blu-rays, and digital television broadcasts. An AC3 stream can be stored as a standalone file or embedded in video containers such as MKV, AVI, or VOB. Supported by VLC, Kodi, foobar2000, and most modern home theatre receivers.
flac
FLAC — Free Lossless Audio Codec
| File extension | .flac |
|---|---|
| File category | audio |
| Programs | VLC media player foobar2000 Audacity Amarok Banshee |
| Tech description | https://en.wikipedia.org/wiki/FLAC |
| MIME type | audio/flac audio/x-flac |
| Developer | Josh Coalson (Xiph.Org) |
FLAC (Free Lossless Audio Codec) is an open-source lossless audio compression format developed by Xiph.Org and released in 2001. Unlike MP3 or AAC, FLAC preserves every bit of the original audio data, allowing perfect reconstruction of the source. Compression typically reduces file size by 40–60% compared to uncompressed WAV or AIFF. FLAC supports up to 32-bit sample depth and 655 kHz sampling rate, as well as embedded metadata tags and cover art. It is royalty-free and widely supported on Android, Linux, Windows, and macOS, as well as media players including VLC, foobar2000, Audacity, and most hi-fi audio hardware.
FAQ
How to convert FLAC to AC3?
Upload your FLAC file, select AC3 as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert FLAC to AC3?
Most FLAC files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert FLAC files online?
Yes. All uploaded FLAC files and converted AC3 results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert FLAC on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the FLAC file and convert to AC3 without installing any app.
