What is AAC?
AAC (Advanced Audio Coding) is a lossy audio format developed as the successor to MP3. Standardized by ISO and IEC, AAC delivers better sound quality than MP3 at the same bitrate—roughly 30% more efficient.
Apple adopted AAC as the default format for iTunes, Apple Music, and iOS devices. YouTube, PlayStation, and many streaming services also use AAC for its superior quality-to-size ratio.
Why Convert AAC Files?
Despite AAC's quality advantages, you might need to convert for:
- Device compatibility – Some older devices only support MP3
- Editing workflows – Audio editors often prefer WAV or AIFF
- Archival purposes – Convert to FLAC for lossless preservation
- Specific requirements – Some platforms require particular formats
Convert AAC to Other Formats
AAC to MP3
Maximum compatibility for older devices and universal playback. MP3 works everywhere, though AAC offers better quality at equivalent bitrates.
AAC to WAV
Uncompressed audio for editing and professional workflows. WAV preserves the quality present in the AAC without further compression.
AAC to FLAC
Lossless compression for archiving. Note that converting lossy AAC to FLAC preserves current quality but cannot restore data already lost.
AAC to OGG
Open-source alternative for Linux systems, games, and applications preferring royalty-free formats.
Convert Other Formats to AAC
Create AAC files for Apple devices and efficient streaming:
MP3 to AAC
Upgrade MP3 files for Apple ecosystem. While quality cannot improve from lossy source, AAC handles the audio more efficiently.
WAV to AAC
Compress uncompressed audio for portable use. AAC at 256kbps delivers excellent quality at a fraction of WAV file size.
FLAC to AAC
Convert lossless to lossy for device compatibility. AAC provides the best quality-to-size ratio for lossy compression.
AAC Technical Specifications
- Full name: Advanced Audio Coding
- Developer: ISO/IEC (Fraunhofer, Dolby, Sony, Nokia, AT&T)
- File extension: .aac, .m4a (with container)
- Compression: Lossy
- Bitrate range: 8 kbps to 320 kbps
- Sample rates: 8 kHz to 96 kHz
- Channels: Up to 48 channels
AAC Compatibility
Devices That Support AAC
- All Apple devices (iPhone, iPad, Mac, Apple TV)
- Most Android devices
- PlayStation consoles
- Modern car stereos
- Streaming services (YouTube, Spotify via container)
Devices That May Not Support AAC
- Older MP3 players
- Some legacy car stereos
- Basic USB media players
How to Convert AAC Files
- Upload your AAC file – Select your audio file
- Choose your output format – MP3, WAV, FLAC, OGG, and more
- Download converted file – Get your audio in the new format
Works on Any Device
Convert AAC files in your browser:
- Windows, Mac, Linux, Chromebook
- Chrome, Firefox, Safari, Edge
- iPhone, iPad, Android