Convert OPUS to AU
Convert OPUS files to AU format online for free. No upload required, 100% private.
Upload File
Drag and drop audio files here, or click to select
🔒 Your files are processed locally in your browser. Nothing is uploaded to our servers.
Converting from OPUS (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 OPUS
OPUS
Opus Interactive Audio Codec
Opus is a modern lossy audio codec optimized for both speech and music. It offers excellent quality at low bitrates and is ideal for real-time communication.
Typical Use Cases
Pros
- • Excellent low-bitrate quality
- • Low latency
- • Open source
- • Versatile
Cons
- • Limited device support
- • Newer format
- • Not all players support it
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.
Typical Use Cases
Pros
- • Simple format
- • Unix native
- • Lightweight
Cons
- • Outdated
- • Limited features
- • Poor cross-platform support