Convert AMR to Opus Online — Free
Fast, free AMR to Opus converter. No registration required.
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Supports: AMR files
Max: 100MB (free) · 2GB (Pro)
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How to Convert
Upload your .amr file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .opus file when it's ready.
What is AMR?
AMR is an audio format optimized for speech encoding. It's commonly used for voice recordings on mobile phones and VoIP applications.
Format Details
- Full Name
- Adaptive Multi-Rate Audio
- Extension
- .amr
Key Features
- Speech optimized
- Mobile phones
- Small files
- Voice recording
What is Opus?
Opus is a modern audio codec designed for interactive speech and audio transmission. It provides excellent quality at low bitrates and is widely used in VoIP and streaming.
Format Details
- Full Name
- Opus Audio Codec
- Extension
- .opus
Key Features
- Low latency
- Excellent compression
- Voice optimized
- Open source
AMR vs Opus
| Feature | AMR | Opus |
|---|---|---|
| Full Name | Adaptive Multi-Rate Audio | Opus Audio Codec |
| Extension | .amr | .opus |
| Best For | Speech optimized | Low latency |