.aac
Advanced Audio Coding
Efficient audio in MP4, HLS and mobile video.
Familyaudio
Owner / standards bodyMPEG
Introduced1997
CompressionLossy perceptual audio
Strengths
- Better efficiency than MP3 at similar bitrates
- Native in video workflows
- Hardware support
Limitations
- Patent and licensing history
- Container/extension can confuse users
Tools that read or create AAC
Related formats
Frequently asked questions
Is AAC the best format?
No format is universally best. The answer depends on compatibility, quality, file size, editing workflow and whether the content needs transparency, subtitles, multiple tracks or streaming.
Can AIMP6 convert AAC?
Yes, Audio Format Converter can work with this format or a closely related export.