GSM to LPCM - Online Audio Converter

Convert GSM to LPCM online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.

Convert GSM to LPCM

[+] Drop GSM audio here or click to select GSM

Output format

LPCM (PCM 16-bit)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About GSM to LPCM

Convert GSM to LPCM. GSM 06.10 encodes European mobile speech at 13 kbps. LPCM is linear PCM as carried on DVD and Blu-ray discs. Disc rips may interleave channels; verify mapping after conversion..

Why convert GSM to LPCM?

Larger files than lossy shares with LPCM uncompressed quality.
Keep quality where supported.
Private, no upload - runs in your browser.

GSM vs LPCM

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.	LPCM is linear PCM as carried on DVD and Blu-ray discs.

When not to convert GSM to LPCM

Skip LPCM 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 LPCM shares.

Limits

Starting point: GSM - GSM 06.10 encodes European mobile speech at 13 kbps. Carrier framing can offset timing; verify duration. Disc rips may interleave channels; verify mapping after conversion. Encode LPCM (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 LPCM?

Drop your GSM file onto this page, choose quality and codec settings, then click Convert. The result downloads as LPCM instantly. All processing runs in your browser.

What codec is used for LPCM?

The default codec for LPCM 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.