ADPCM to WMA - Online Audio Converter

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

Convert ADPCM to WMA

[+] Drop ADPCM audio here or click to select ADPCM, WAV

Output format

WMA (WMA v2)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About ADPCM to WMA

Convert ADPCM to WMA. ADPCM predicts samples to quarter voice-band bitrates. WMA is Microsoft's audio codec paired with Windows Media workflows. Copy-protected store files cannot be converted; use DRM-free sources..

Why convert ADPCM to WMA?

Smaller files with WMA lossy compression.
Keep quality where supported.
Private, no upload - runs in your browser.

ADPCM vs WMA

Codec	ADPCM	WMA v2
Compression	lossy	lossy
Sample behavior	Quality set by bitrate	Quality set by bitrate
Typical use	ADPCM predicts samples to quarter voice-band bitrates.	WMA is Microsoft's audio codec paired with Windows Media workflows.

When not to convert ADPCM to WMA

Skip WMA for archival masters: lossy compression discards detail, so keep the ADPCM original.
Keep a master copy: repeated exports stack small losses, so archive ADPCM before batch WMA shares.

Limits

Starting point: ADPCM - ADPCM predicts samples to quarter voice-band bitrates. Variants differ by vendor, so confirm the flavor before converting. Copy-protected store files cannot be converted; use DRM-free sources. Encode WMA (WMA v2) 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.

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FAQ

How do I convert ADPCM to WMA?

Drop your ADPCM 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.