AMR Converter
Convert AMR files to and from other formats for free right in your browser - no uploads.
- Free Converter
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- No Uploads
Add files
Drop files anywhere on the page or paste them with Ctrl+V / ⌘+V
Convert AMR to other formats
What else you can do with AMR
About the AMR format
AMR (Adaptive Multi-Rate)
AMR was created for GSM and 3G networks: it carries voice in a narrow frequency band at 4.75 to 12.2 kbps, so a minute of recording takes less than 100 KB. The wideband variant AMR-WB makes the voice clearer.
Computers and players hardly open AMR - it is converted to MP3. The recording won't get cleaner, but it will open on any device. When saving to AMR the sound is written in the standard AMR-NB variant: mono, 8 kHz, 12.2 kbps.
Best for voice recordings at the smallest size.
AMR specifications
| Property | AMR |
|---|---|
| File type | Audio |
| Extensions | .amr |
| MIME type | audio/amr |
| Conversion from this format | Yes |
| Conversion to this format | Yes |
| Quality setting | No |
How to convert AMR files?
Add AMR files
Drag and drop files onto the page or click the upload area. You can add several files at once.
Choose the format and settings
Pick the target format and, if needed, adjust quality, size and other options.
Download the result
Conversion runs right in your browser. Download files one by one or all at once as a ZIP archive.
Similar formats
Frequently asked questions
How do I convert AMR files?
Add AMR files above, choose the target format and settings, then download the result. Everything runs in your browser.
What can I convert AMR to?
For example, to MP3. All options are listed above.