AMR to WAV Converter
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Supports: AMR
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Need help?How to Convert AMR to WAV Online
- Upload Your AMR Files: Click "+ Add Files" to select AMR files from your computer, Google Drive, or Dropbox. Batch upload supported.
- Choose Settings: Select audio codec, compression method (quality preset, target file size, or bitrate), sample rate, and channel configuration (stereo/mono). Optionally trim with start time and duration.
- Convert and Download: Click "Convert" and download your WAV files.
What Is AMR?
AMR (Adaptive Multi-Rate) is an audio format designed for mobile voice recording. It was developed for GSM networks and is optimized for speech at very low bitrates (4.75-12.2 kbps).
AMR files come from:
- Phone call recordings — many Android call recording apps save as AMR
- Voice memos — older Android phones default to AMR
- VoIP recordings — some VoIP systems use AMR
- MMS messages — audio attachments in multimedia messages
Competitors like on4t.com explains AMR "was developed for GSM networks to compress audio and save bandwidth" with "adaptive bit rate based on audio complexity." changemyfile.com confirms "AMR to WAV conversion preserves voice clarity while making files compatible with Audacity, Adobe Audition, and GarageBand." clideo.com notes AMR was "created in the 1990s for storing audio with human speech on mobile devices."
AMR vs WAV
| Feature | AMR | WAV |
|---|---|---|
| Bitrate | 4.75-12.2 kbps | 1,411 kbps (CD quality) |
| Quality | Voice only (narrowband) | Full spectrum |
| File size (1 min) | ~100KB | ~10MB |
| Editor support | ⚠️ Limited | ✅ Universal |
| Use case | Mobile voice recording | Professional editing |
Frequently Asked Questions
Is it free?
Yes. Completely free with no sign-up required and no file count limits.
Will converting improve audio quality?
No. AMR is very low quality (narrowband speech). Converting to WAV preserves what's there but can't add detail that wasn't captured.
Can I convert multiple files at once?
Yes. Upload multiple AMR files and convert them all with the same settings.
Does it work on mobile?
Yes. Works in any modern browser on all devices — no app installation required.