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GSM to xHE-AAC - Online Audio Converter
Convert GSM to xHE-AAC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert GSM to xHE-AAC
Drop GSM audio here or click to select
GSM
xHE-AAC (AAC (xHE))
About GSM to xHE-AAC
Convert GSM to xHE-AAC. GSM 06.10 encodes European mobile speech at 13 kbps. xHE-AAC unifies speech and music coding with loudness normalization. Needs a current decoder; fall back to AAC for older devices..
Why convert GSM to xHE-AAC?
- Smaller files with xHE-AAC lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
GSM vs xHE-AAC
| Codec | GSM | AAC (xHE) |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | GSM 06.10 encodes European mobile speech at 13 kbps. | xHE-AAC unifies speech and music coding with loudness normalization. |
When not to convert GSM to xHE-AAC
- Skip xHE-AAC for archival masters: lossy compression discards detail, so keep the GSM original.
- Keep a master copy: repeated exports stack small losses, so archive GSM before batch xHE-AAC shares.
Limits
Starting point: GSM - GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration. Needs a current decoder; fall back to AAC for older devices. Encode xHE-AAC (AAC (xHE)) from GSM 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 GSM to xHE-AAC?
Drop your GSM file onto this page, choose quality and codec settings, then click Convert. The result downloads as xHE-AAC instantly. All processing runs in your browser.
What codec is used for xHE-AAC?
The default codec for xHE-AAC is AAC (xHE). 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.