Bulk AMR to 3GA Converter Online — Free HD Quality
Drag and drop your multiple AMR files into this 100% free online AMR to 3GA converter (.amr to .3ga), and click the Convert button to bulk convert them to 3GA format in HD quality. Use the quality slider to fine-tune your 3GA output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original AMR files are removed from our servers right after. Also see:Change M4P to WAV.
Drop your AMR files here to convert to 3GA, or click to browse
Converts .amr to 3GA (.3ga) in HD quality — bulk, free, no signup
Choose FilesAMR vs 3GA — File Format Comparison
See how AMR and 3GA compare across file extension, MIME type, compression, and feature support. Related:Bulk AMR to OGA tool.
| Feature | AMR | 3GA |
|---|---|---|
| File Extension | .amr | .3ga |
| MIME Type | audio/amr | audio/3gpp |
| Compression Type | Lossy | Lossy |
| Metadata Support | No | Yes |
What Is AMR Format?
Adaptive Multi-Rate — the standard voice codec for GSM and UMTS mobile networks, used in phone call recordings and voice messages; delivers compact files optimised for speech at 8 kHz.
- Compression: Lossy
- Tags & Metadata: Not supported
What Is 3GA Format?
3GPP Audio — audio-only 3GPP mobile container carrying AMR or AAC audio, created by Android and older Nokia/Samsung phones for voice recordings and audio messages.
- Compression: Lossy
- Tags & Metadata: Supported