AMR (Adaptive Multi-Rate) is the audio format for mobile voice recordings and old phone ringtones, optimized for speech at small sizes.
AMR plays in VLC and many phones; convert to MP3 to play and edit anywhere.
Listening on any device or app.
Production-quality source audio.
Lightweight recordings to share.
| ✔ Strengths | ✖ Limitations |
|---|---|
| Purpose-built for its niche | No transparency support |
| Limited support — may need converting |
Remove the background from AMR images, upscale to 4K, or generate new visuals with SharkFoto AI.
AMR (Adaptive Multi-Rate) is the audio format for mobile voice recordings and old phone ringtones, optimized for speech at small sizes.
AMR plays in VLC and many phones; convert to MP3 to play and edit anywhere.
AMR is optimised for its specific use rather than strictly lossless storage.
Use SharkFoto's free tools — upload your AMR file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.
No — AMR doesn't store transparency; convert to PNG or WEBP if you need it.