AMR Converter

How to Convert AMR to Any Format

1. Upload Your AMR File: Drag and drop your .amr recording or click "Add Files". Both AMR-NB (narrowband) and AMR-WB (wideband) files are accepted, and batch is supported — drop in a whole folder of voice memos and each one converts in parallel.
2. Pick an Output Format and Quality Preset: Choose the target from the output-format dropdown — MP3, WAV, AAC, M4A, OGG, FLAC, Opus, and more. The default Audio Quality Preset is "Very High (Recommended)"; you can switch to Specific file size to cap output at an exact MB target, Custom Bitrate or Constant Bitrate (128 / 192 / 256 / 320 kbps) for predictable sizes, or Highest down to Lowest on the preset scale.
3. Adjust Channels, Sample Rate, or Trim (Optional): Under Audio Channel keep Original or force Mono / Stereo; under Audio Sample Rate keep Original or resample (8 kHz to 48 kHz). Use Trim to clip a start time and duration so you export only the part of the recording you need.
4. Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared.

Popular AMR Conversions

• AMR to MP3 — the universal choice; play phone voice recordings in any media player or share them by email
• AMR to WAV — uncompressed PCM for editing in Audacity, Audition, or transcription software
• AMR to AAC — efficient, Apple-friendly audio for the iOS and macOS ecosystem
• AMR to M4A — wrap the audio for iTunes, Apple Music, and the Voice Memos app
• AMR to OGG — royalty-free Vorbis for open-source players and the web
• AMR to FLAC — lossless archival container (note: AMR's source quality is already speech-limited)
• AMR to Opus — modern low-bitrate voice codec for VoIP and messaging apps

Why Convert an AMR File?

AMR (Adaptive Multi-Rate) is a lossy speech codec adopted by 3GPP in October 1999 and built into GSM and UMTS mobile networks. It was designed for one job: compressing the human voice at tiny bitrates. AMR-NB samples at 8 kHz, filters audio to a 200–3400 Hz telephone band, and encodes 20-millisecond frames at one of eight bitrate modes from 4.75 to 12.2 kbps — so a minute of speech is roughly 90 KB. That efficiency is why Android phones, many call-recorder apps, and MMS voice messages still produce .amr files. AMR-WB (wideband) widens the band to 50–7000 Hz at a 16 kHz sample rate for clearer voice, but it is the same speech-first family.

The problem shows up the moment that file leaves the phone. Outside the mobile ecosystem, AMR is a second-class citizen: Windows Media Player, the macOS Music app, most browsers, and standard audio editors don't open .amr natively without an FFmpeg plug-in. Converting solves that.

• Play it anywhere — Re-encoding AMR to MP3 produces a file that opens in VLC, QuickTime, Windows Media Player, car stereos, and every phone, with no codec pack required.
• Edit or transcribe it — Tools like Audacity and Adobe Audition prefer an uncompressed or standard format. Convert to WAV (PCM) so the waveform loads cleanly for trimming, noise reduction, or transcription.
• Share it without friction — Email clients and chat apps preview and play MP3 inline; an .amr attachment usually downloads as an unknown file the recipient can't open.
• Archive a voice memo or interview — A standard MP3 or M4A is far more likely to still play in a decade than a niche mobile-network codec.

Because AMR is already heavily compressed and band-limited, converting to MP3 wraps the same audio in a playable format but does not add fidelity that was never captured — speech stays clear; music or background detail won't suddenly improve.

AMR Format at a Glance

Frequently Asked Questions

What program opens an AMR file?

VLC media player (Windows, macOS, Linux) plays .amr files directly, as does QuickTime on a Mac. Audacity can import and edit AMR if you've installed its optional FFmpeg library. Windows Media Player and the macOS Music app generally do not open AMR without extra codecs — which is the most common reason people convert it to MP3 first, since MP3 plays in essentially every player and on every device.

Will converting AMR to MP3 improve the audio quality?

No — and it's important to be realistic about this. AMR is a lossy, band-limited speech codec: AMR-NB captures only the 200–3400 Hz telephone range. Converting to MP3 makes the file universally playable, but it cannot recover frequencies the original never recorded. The audio will sound the same as the source AMR, just in a format your players accept. To avoid adding a second round of lossy compression on top, export at a high MP3 bitrate (256 or 320 kbps) or convert to WAV/FLAC for a lossless wrapper.

Should I convert AMR to WAV or MP3?

Pick MP3 for sharing and playback — it's small and plays everywhere. Pick WAV when you plan to edit the recording: WAV is uncompressed PCM, so editors like Audacity and Adobe Audition load the waveform without re-decoding a lossy stream, and you avoid stacking compression artifacts during cleanup or noise reduction. Many people convert to WAV to edit, then export the finished result to MP3.

Is an AMR file the same as a 3GP or 3GA file?

They're related but not identical. A raw .amr file is a bare AMR audio stream that starts with the #!AMR header (defined in RFC 4867). .3gp and .3ga are 3GPP container files that can hold AMR audio (often alongside video) rather than being the raw codec stream. If your file is .3gp/.3ga, the audio inside is frequently AMR or AAC; our converter handles the AMR audio either way.

Can I convert several AMR voice memos at once?

Yes. Drop multiple .amr files into the uploader and each one is converted in parallel; you can download them individually or grab the whole set as a single ZIP. In our testing, a batch of short call recordings — each well under a megabyte, as AMR files tend to be — converts to MP3 in a few seconds total, since the encode work per file is tiny.

Are my voice recordings kept private when I convert them?

Your files are uploaded over an encrypted (TLS) connection, processed on our servers, and deleted automatically after a few hours. There's no sign-up, no watermark, and your recordings are never shared or made public. Because voice memos and call recordings can be sensitive, this matters: nothing is retained for training, indexing, or any other purpose once the conversion is done.