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GSM to EVRC - Online Audio Converter
Convert GSM to EVRC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert GSM to EVRC
Drop GSM audio here or click to select
GSM
EVRC (EVRC)
About GSM to EVRC
Convert GSM to EVRC. GSM 06.10 encodes European mobile speech at 13 kbps. EVRC compresses CDMA voice calls near 8 kbps. Call recordings may skip headers; verify duration after conversion..
Why convert GSM to EVRC?
- Smaller files with EVRC lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
GSM vs EVRC
| Codec | GSM | EVRC |
|---|---|---|
| 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. | EVRC compresses CDMA voice calls near 8 kbps. |
When not to convert GSM to EVRC
- Skip EVRC 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 EVRC shares.
Limits
Starting point: GSM - GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration. Call recordings may skip headers; verify duration after conversion. Encode EVRC (EVRC) 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 EVRC?
Drop your GSM file onto this page, choose quality and codec settings, then click Convert. The result downloads as EVRC instantly. All processing runs in your browser.
What codec is used for EVRC?
The default codec for EVRC is EVRC. 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.