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AAC to AMR-WB - Online Audio Converter
Convert AAC to AMR-WB online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert AAC to AMR-WB
Drop AAC audio here or click to select
AAC
AMR-WB (AMR-WB)
About AAC to AMR-WB
Convert AAC to AMR-WB. AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. AMR-WB widens speech to 16 kHz for HD voice calls. 16 kHz sampling caps highs; keep a master for music..
Why convert AAC to AMR-WB?
- Smaller files with AMR-WB lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
AAC vs AMR-WB
| Codec | AAC | AMR-WB |
|---|---|---|
| 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-WB widens speech to 16 kHz for HD voice calls. |
When not to convert AAC to AMR-WB
- Skip AMR-WB 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-WB shares.
Limits
Starting point: AAC - Efficient lossy audio for streaming services. Container variants (ADTS, MP4) need matching extensions on export. 16 kHz sampling caps highs; keep a master for music. Encode AMR-WB (AMR-WB) 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-WB?
Drop your AAC file onto this page, choose quality and codec settings, then click Convert. The result downloads as AMR-WB instantly. All processing runs in your browser.
What codec is used for AMR-WB?
The default codec for AMR-WB is AMR-WB. 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.