Bulk AMR to 3GA Converter Online — Free HD Quality
Drag and drop your multiple AMR files into this 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 — your original AMR files are removed from our servers right after.
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PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
AMR vs 3GA — File Format Comparison
| 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
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