Opus to AMR-WB - Online Audio Converter

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

Convert Opus to AMR-WB

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

Output format

AMR-WB (AMR-WB)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About Opus to AMR-WB

Convert Opus to AMR-WB. Opus adapts from 6 kbps speech to 510 kbps music with low latency. AMR-WB widens speech to 16 kHz for HD voice calls. 16 kHz sampling caps highs; keep a master for music..

Why convert Opus to AMR-WB?

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

Opus vs AMR-WB

Codec	Opus	AMR-WB
Compression	lossy	lossy
Sample behavior	Quality set by bitrate	Quality set by bitrate
Typical use	Opus adapts from 6 kbps speech to 510 kbps music with low latency.	AMR-WB widens speech to 16 kHz for HD voice calls.

When not to convert Opus to AMR-WB

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

Limits

Starting point: Opus - Opus adapts from 6 kbps speech to 510 kbps music with low latency. CD-era hardware may not decode it; use MP3 for legacy players. 16 kHz sampling caps highs; keep a master for music. Encode AMR-WB (AMR-WB) from Opus 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 Opus to AMR-WB?

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

What codec is used for AMR-WB?

The default codec for AMR-WB is AMR-WB. 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.