Convert AU to AAC
Convert AU files to AAC format online for free. No upload required, 100% private.
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AUAACSize Reduction
Converting from AU (Uncompressed) to AAC (lossy) will significantly reduce file size. Some audio quality will be lost, but the difference is often imperceptible at higher bitrates.
About AU
AU
Sun Microsystems Audio
AU is a simple audio format originally developed by Sun Microsystems for Unix systems. It supports both compressed and uncompressed audio.
Extension
.au
Developed By
Sun Microsystems
Released
1980s
Compression
UncompressedTypical Use Cases
Unix/Linux systemsLegacy applicationsSimple audio storage
Pros
- • Simple format
- • Unix native
- • Lightweight
Cons
- • Outdated
- • Limited features
- • Poor cross-platform support
About AAC
AAC
Advanced Audio Coding
AAC is a lossy audio codec designed as the successor to MP3. It provides better sound quality at similar bitrates and is widely used in streaming services.
Extension
.aac
Developed By
ISO/IEC
Released
1997
Compression
LossyTypical Use Cases
YouTubeStreaming servicesDigital broadcastingMobile devices
Pros
- • Better quality than MP3
- • Efficient compression
- • Wide platform support
Cons
- • Patent encumbered
- • Less universal than MP3
- • Variable encoder quality