All Tools
[ audio bench ]
ADPCM to LPCM - Online Audio Converter
Convert ADPCM to LPCM online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert ADPCM to LPCM
Drop ADPCM audio here or click to select
ADPCM, WAV
LPCM (PCM 16-bit)
About ADPCM to LPCM
Convert ADPCM to LPCM. ADPCM predicts samples to quarter voice-band bitrates. LPCM is linear PCM as carried on DVD and Blu-ray discs. Disc rips may interleave channels; verify mapping after conversion..
Why convert ADPCM to LPCM?
- Larger files than lossy shares with LPCM uncompressed quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
ADPCM vs LPCM
| Codec | ADPCM | PCM 16-bit |
|---|---|---|
| Compression | lossy | uncompressed |
| Sample behavior | Quality set by bitrate | Full quality kept |
| Typical use | ADPCM predicts samples to quarter voice-band bitrates. | LPCM is linear PCM as carried on DVD and Blu-ray discs. |
When not to convert ADPCM to LPCM
- Skip LPCM for the smallest share: lossless output stays large, so prefer a lossy target when sending ADPCM files.
- Keep a master copy: repeated exports stack small losses, so archive ADPCM before batch LPCM shares.
Limits
Starting point: ADPCM - ADPCM predicts samples to quarter voice-band bitrates. Variants differ by vendor, so confirm the flavor before converting. Disc rips may interleave channels; verify mapping after conversion. Encode LPCM (PCM 16-bit) from ADPCM 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.
Related conversions
FAQ
How do I convert ADPCM to LPCM?
Drop your ADPCM 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.