Convert AAC Files to AMR on Your Device

Make a AMR copy of AAC in your browser for compact speech delivery. Processing takes place locally, so the original AAC never leaves your device.

Drop files here or browse (MAX 50 MB)

Max 50 MB per file

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When your browser supports it, your audio plays here. You can still convert your file if preview does not load.

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File name

Adapt efficient distribution to a workflow built for compact speech delivery
Supply AMR when an editor, player, or delivery form will not accept AAC
Create a AMR copy from AAC for telephony recordings and voice-focused mobile systems

Processing demand varies with the codecs found in the source during this AAC-to-AMR job.
A short AAC sample is quicker to process than a full-length recording.
Check picture, sound, and timing in AMR before removing the source.

AMR serves telephony recordings and voice-focused mobile systems, whereas AAC commonly serves streaming, mobile playback, and compact delivery.
For AAC-to-AMR delivery, plan for poor suitability for music.
After leaving AAC, the receiving app must support the streams encoded inside AMR, not only its extension.

AAC to AMR taking too long? Reduce other processor activity and leave the page open until completion.
AMR converted from AAC not opening? Test a compatible player and inspect the output streams.
Inspect the generated streams when an app recognizes AMR but refuses playback.

When does AAC to AMR conversion make sense?

It is useful when AAC media created for efficient distribution must enter a AMR system designed for compact speech delivery.

Where is the AAC source processed?

The browser prepares AMR from AAC on this device instead of sending the source to a remote conversion server.

How can I approve AMR converted from AAC?

Test the AMR file in the receiving app and compare duration, channels and loudness with the AAC source.

Quick use cases