AMR to AAC - Online Audio Converter

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

Convert AMR to AAC

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

Output format

AAC (AAC)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About AMR to AAC

Convert AMR to AAC. AMR encodes narrowband speech for GSM calls at 12.2 kbps and below. AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music. Container variants (ADTS, MP4) need matching extensions on export..

Why convert AMR to AAC?

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

AMR vs AAC

Codec	AMR-NB	AAC
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.	AAC is the MPEG-4 successor to MP3 used by YouTube and Apple Music.

When not to convert AMR to AAC

Skip AAC 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 AAC 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. Container variants (ADTS, MP4) need matching extensions on export. Encode AAC (AAC) 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 AAC?

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

What codec is used for AAC?

The default codec for AAC is AAC. 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.