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GSM to VOC - Online Audio Converter
Convert GSM to VOC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert GSM to VOC
Drop GSM audio here or click to select
GSM
VOC (PCM 16-bit)
About GSM to VOC
Convert GSM to VOC. GSM 06.10 encodes European mobile speech at 13 kbps. VOC is Creative's Sound Blaster voice format with loop markers. Loop markers drop on export; trim manually after conversion..
Why convert GSM to VOC?
- Larger files than lossy shares with VOC uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
GSM vs VOC
| Codec | GSM | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | GSM 06.10 encodes European mobile speech at 13 kbps. | VOC is Creative's Sound Blaster voice format with loop markers. |
When not to convert GSM to VOC
- Skip VOC 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 VOC shares.
Limits
Starting point: GSM - GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration. Loop markers drop on export; trim manually after conversion. Encode VOC (PCM 16-bit) 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 VOC?
Drop your GSM file onto this page, choose quality and codec settings, then click Convert. The result downloads as VOC instantly. All processing runs in your browser.
What codec is used for VOC?
The default codec for VOC is PCM 16-bit. 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.