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AMR to AIFF converter

Convert AMR to AIFF in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want AIFF
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Bytes of your files sent anywhere: 0 B

Related conversions

Other ways to convert AMR

Convert other formats to AIFF

Read more about the AMR format and the AIFF format, or see every audio tool and all audio conversions.

Should you convert AMR to AIFF?

Only when software insists on AIFF. It stores the decoded AMR perfectly, but the detail the AMR discarded is already gone, so the AIFF is bigger without sounding better.

AIFF also plays in more places: Macs, iPhones and pro audio software; some Windows and web apps prefer WAV.

AMR is narrow-band speech audio from phones and call recorders; AIFF is uncompressed audio, Apple’s equivalent of WAV. Use AIFF for editing in Mac audio software, or when a Mac workflow asks for it.

AMR and AIFF compared
Property AMR AIFF
Compression Lossy Uncompressed
Typical quality 4.75–12.2 kbps, 8 kHz 16-bit PCM
Support A legacy format Opens almost everywhere
Best for Nothing today; convert old call recordings and voice memos Audio production on Macs, and importing into Logic or GarageBand
Introduced 1999 1988

How to convert AMR to AIFF

  1. 01

    Add your AMR

    Drop your AMR file onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to AIFF. Change the bitrate if you want to; the defaults suit most files.

  3. 03

    Save the AIFF

    Press convert and save the AIFF. Several files come back together as a ZIP.

What changes when AMR becomes AIFF

Bigger, not better

AIFF can’t restore what AMR compression removed. It does make editing easier and stops further loss, which is why editors and some broadcast systems ask for it.

Phone-quality sources stay phone quality

AMR recordings are usually sampled at 8 kHz for speech. Converting to AIFF makes them play anywhere, but can’t add clarity that was never recorded.

Who needs AIFF

Use AIFF for editing in Mac audio software, or when a Mac workflow asks for it.

A one-time engine download

AMR is decoded by FFmpeg compiled to WebAssembly, a 31 MB download the first time. After that it is cached, and the conversion never leaves your device.

Expect a much larger file

AIFF is far bigger for the same content. Choose it because something needs AIFF, not to send or store the file. AMR: About 90 KB a minute. AIFF: About 10 MB a minute at CD quality.

This page is put together from our notes on each format, choosing only what is true of AMR and AIFF, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Recordings are often private: interviews, voice notes, unreleased music. Your browser can decode and encode audio itself, so there is no reason to send it anywhere.

How to check for yourself

Worth knowing

  • About the AMR. AMR is sampled at 8 kHz, so converting it to a high-quality format won’t add any clarity; it will still sound like a phone call.
  • About the AIFF. AIFF stores samples in the opposite byte order to WAV; tools that assume WAV turn it into loud static.
  • MP3, WAV, M4A, OGG, Opus and FLAC are converted by your browser directly. WMA, AMR, APE, AC3 and the other specialist formats use the FFmpeg engine, a one-time 31 MB download.

Questions

Does converting AMR to AIFF lose quality?

No quality is lost converting to AIFF, though it can’t restore what the AMR already discarded.

Will an AIFF play in my car or on my phone?

AIFF opens almost everywhere: Macs, iPhones and pro audio software; some Windows and web apps prefer WAV.

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