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GSM to SHN - Online Audio Converter
Convert GSM to SHN online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert GSM to SHN
Drop GSM audio here or click to select
GSM
SHN (SHN)
About GSM to SHN
Convert GSM to SHN. GSM 06.10 encodes European mobile speech at 13 kbps. SHN (Shorten) is the 1990s concert-trading codec for live recordings. Seek tables can be sparse; verify duration after conversion..
Why convert GSM to SHN?
- Larger files than lossy shares with SHN lossless quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
GSM vs SHN
| Codec | GSM | SHN |
|---|---|---|
| Compression | lossy | lossless |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | GSM 06.10 encodes European mobile speech at 13 kbps. | SHN (Shorten) is the 1990s concert-trading codec for live recordings. |
When not to convert GSM to SHN
- Skip SHN for the smallest share: lossless output stays large, so prefer a lossy target when sending GSM files.
- Keep a master copy: repeated exports stack small losses, so archive GSM before batch SHN shares.
Limits
Starting point: GSM - GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration. Seek tables can be sparse; verify duration after conversion. Encode SHN (SHN) 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 SHN?
Drop your GSM file onto this page, choose quality and codec settings, then click Convert. The result downloads as SHN instantly. All processing runs in your browser.
What codec is used for SHN?
The default codec for SHN is SHN. 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.