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GSM to WMA - Online Audio Converter
Convert GSM to WMA online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert GSM to WMA
Drop GSM audio here or click to select
GSM
WMA (WMA v2)
About GSM to WMA
Convert GSM to WMA. GSM 06.10 encodes European mobile speech at 13 kbps. WMA is Microsoft's audio codec paired with Windows Media workflows. Copy-protected store files cannot be converted; use DRM-free sources..
Why convert GSM to WMA?
- Smaller files with WMA lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
GSM vs WMA
| Codec | GSM | WMA v2 |
|---|---|---|
| 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. | WMA is Microsoft's audio codec paired with Windows Media workflows. |
When not to convert GSM to WMA
- Skip WMA 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 WMA shares.
Limits
Starting point: GSM - GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration. Copy-protected store files cannot be converted; use DRM-free sources. Encode WMA (WMA v2) 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 WMA?
Drop your GSM file onto this page, choose quality and codec settings, then click Convert. The result downloads as WMA instantly. All processing runs in your browser.
What codec is used for WMA?
The default codec for WMA is WMA v2. 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.