AMR to WAV Converter
Convert AMR (Adaptive Multi-Rate) voice recordings to uncompressed WAV format. Powered by FFmpeg WebAssembly. AMR is the standard format for Android voice memos and call recordings.
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Complete Guide: AMR to WAV Converter
Everything you need to know about using this tool effectively
The AMR to WAV Converter decodes AMR voice recordings into uncompressed WAV format. AMR is the standard recording format for voice memos and call recordings on Android devices. Converting to WAV produces a universally compatible file suitable for editing, transcription, or archival. All conversion runs in your browser using FFmpeg via WebAssembly.
AMR (Adaptive Multi-Rate) is a speech codec optimised for low-bitrate voice transmission. Android devices use AMR-NB (Narrowband, 4.75–12.2 kbps) for voice memos and AMR-WB (Wideband) for higher quality voice calls. Because most desktop software cannot open AMR files without special codecs, converting to WAV is the most practical way to use Android voice recordings on a computer.
Open Android voice memos on a computer
Android Voice Recorder saves files as AMR. Convert to WAV to open them in any audio editor, media player, or transcription tool on Windows, macOS, or Linux.
Transcribe phone call recordings
Call recorder apps on Android often save in AMR format. Convert to WAV to upload to transcription services or use with speech-to-text software.
Edit voice recordings in a DAW
WAV is universally supported by all digital audio workstations. Convert AMR voice memos to WAV before importing into Audacity, GarageBand, or any DAW for editing.
Archive voice recordings
AMR is a proprietary format with limited long-term software support. Convert to WAV for archival in a format that will remain accessible indefinitely.
Share voice memos across platforms
WAV files play on any device. Convert AMR recordings to WAV to share with colleagues or collaborators who may not have Android-compatible software.
Transfer AMR file to your computer
Connect your Android device via USB or use cloud storage to copy the AMR file to your computer.
Upload AMR file
Click to browse or drag and drop your AMR file into the upload area.
Wait for FFmpeg to load
On first use, the FFmpeg WebAssembly binary loads from a CDN. This takes a few seconds. Subsequent conversions are immediate.
Convert and download
Click Convert to WAV. Download your WAV file for use in any audio editor or media player.
AMR is a speech codec designed for voice, not music. Audio quality is adequate for voice but poor for music recordings.
AMR-NB has a narrowband frequency range (300–3400 Hz), which sounds telephone-like. This is a limitation of the source, not the conversion.
For transcription, WAV is the most widely accepted input format for speech-to-text services.
Keep your original AMR files in case you need to re-convert.
AMR files are typically very small because of the low bitrate. The resulting WAV will be much larger.
Why can't I open AMR files on my computer?
AMR is a mobile speech codec with limited desktop codec support. Most audio players and editors do not include AMR decoders. Converting to WAV resolves this.
Does converting AMR to WAV improve audio quality?
No. AMR is a lossy speech codec and the audio data discarded during recording cannot be recovered. The WAV file will sound the same as the AMR source.
Are my files uploaded to a server?
No. FFmpeg runs in your browser via WebAssembly. Your files are processed locally and never sent to any server.
What is the difference between AMR-NB and AMR-WB?
AMR-NB (Narrowband) records at 4.75–12.2 kbps and has a frequency range of 300–3400 Hz, similar to a telephone call. AMR-WB (Wideband) records at higher bitrates with a broader 50–7000 Hz frequency range for better voice quality. This tool handles both.
Why does the first conversion take longer?
The first conversion loads the FFmpeg WebAssembly binary. This takes a few seconds. Subsequent conversions are immediate.