About the AAC codec
AAC improves on MP3 at every bitrate and is the audio track in most MP4 video.
- Media
- audio
- Compression
- Lossy
- Introduced
- 1997
- Licensing
- Patent pool
AAC scores
Deterministic scores calculated from the structured facts above. Identical facts always produce identical scores.
Overall score
83/100
Archiving score
100- it is a current, actively maintained format
- it is actively maintained and current
Confidence 36% · evidence coverage 56%
Longevity score
89- it is actively maintained and current
- it is a current, actively maintained format
- it occupies a niche corner of the ecosystem
Confidence 38% · evidence coverage 75%
Related to AAC
Data quality
Every claim on this page is classified as a verified fact, a derived fact or an assumption.
- Overall confidence
- 90%
- Verification status
- verified
- Last reviewed
- 2026-08-03
- Verified facts
- 2
2 classified claims backed by 1 source.
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Sources and review status
Review status: verified · confidence 90%
Last reviewed 2026-08-03 (revision 1).
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