Bulk RMI to AMR Converter Online — Free HD Quality
Drag and drop your multiple RMI files into this free online RMI to AMR converter (.rmi to .amr), and click the Convert button to bulk convert them to AMR format in HD quality. Use the quality slider to fine-tune your AMR output, then download your converted files one by one or as a single ZIP — your original RMI 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
RMI vs AMR — File Format Comparison
| Feature | RMI | AMR |
|---|---|---|
| File Extension | .rmi | .amr |
| MIME Type | audio/midi | audio/amr |
| Compression Type | Varies | Lossy |
| Metadata Support | Yes | No |
What Is RMI Format?
RIFF MIDI — a Windows variant of the MIDI format wrapped in a RIFF container (the same container used by WAV), produced by older Windows Media Player and Cakewalk software.
- Compression: Varies
- Tags & Metadata: Supported
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
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