Securely convert your AMR files to AU using our entirely local, in browser file converter. No download required, no data leaves your computer.
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Adaptive Multi-Rate
AMR (Adaptive Multi-Rate) is a compressed audio format optimized for speech coding. It's widely used in mobile phones for voice recordings and voice calls due to its ability to adjust the bit rate based on the complexity of the audio, ensuring efficient storage and transmission.
Sun AU
AU (Audio File Format or Sun AU) is a simple audio file format introduced by Sun Microsystems. It's primarily used on Unix-based systems and retains audio data in three parts: a header, a variable-length annotation block, and the actual audio data, making it suitable for simple audio tasks and computer system alerts.
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We support converting from AMR to all of these formats
We support converting to AU from all of these formats
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