AMR to WMA - Online Audio Converter

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

Convert AMR to WMA

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

Output format

WMA (WMA v2)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About AMR to WMA

Convert AMR to WMA. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. WMA is Microsoft's audio codec paired with Windows Media workflows. Copy-protected store files cannot be converted; use DRM-free sources..

Why convert AMR to WMA?

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

AMR vs WMA

Codec	AMR-NB	WMA v2
Compression	lossy	lossy
Sample behavior	Quality set by bitrate	Quality set by bitrate
Typical use	AMR encodes narrowband speech for GSM calls at 12.2 kbps and below.	WMA is Microsoft's audio codec paired with Windows Media workflows.

When not to convert AMR to WMA

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

Limits

Starting point: AMR - AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. Tuned for voice calls, so music loses detail by design. Copy-protected store files cannot be converted; use DRM-free sources. Encode WMA (WMA v2) from AMR 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 AMR to WMA?

Drop your AMR 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.