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AAC to AMR - Online Audio Converter
Convert AAC to AMR online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AAC to AMR
Drop AAC audio here or click to select
AAC
AMR (AMR-NB)
About AAC to AMR
Convert AAC to AMR. AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. Tuned for voice calls, so music loses detail by design..
Why convert AAC to AMR?
- Smaller files with AMR lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AAC vs AMR
| Codec | AAC | AMR-NB |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. | AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. |
When not to convert AAC to AMR
- Skip AMR for archival masters: lossy compression discards detail, so keep the AAC original.
- Keep a master copy: repeated exports stack small losses, so archive AAC before batch AMR shares.
Limits
Starting point: AAC - Efficient lossy audio for streaming services. Container variants (ADTS, MP4) need matching extensions on export. Tuned for voice calls, so music loses detail by design. Encode AMR (AMR-NB) from AAC at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert AAC to AMR?
Drop your AAC file onto this page, choose quality and codec settings, then click Convert. The result downloads as AMR instantly. All processing runs in your browser.
What codec is used for AMR?
The default codec for AMR is AMR-NB. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.