Convert AAC to AU
Convert AAC files to AU format online for free. No upload required, 100% private.
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AACAUQuality Note
Converting from AAC (lossy) to AU (Uncompressed) will increase file size but will NOT improve audio quality. The quality lost during the original compression cannot be recovered.
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
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- • Outdated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