FormatDrop
How-To Guide

How to Convert AMR to WAV

AMR is a compressed voice codec; WAV is uncompressed PCM. Converting AMR to WAV expands the compressed voice data to a format any audio editor or transcription tool can read directly. The conversion is useful for cleaning up voicemails in Audacity, transcribing voice notes, or processing voice data with speech recognition APIs.

Open AMR to WAV Converter

Step-by-step instructions

  1. 1

    Upload your AMR file

    Select your .amr file. Voicemail recordings, old phone audio, and 3G recordings are typical sources.

    Go to converter
  2. 2

    Choose WAV as output

    Select WAV. Output is 16-bit PCM at 8 kHz (matching AMR's narrowband sample rate) or 16 kHz (matching AMR-WB wideband).

  3. 3

    Download and edit

    Open the WAV in Audacity, Adobe Audition, or Logic Pro. Apply noise reduction, normalize levels, or feed to a transcription tool. WAV is the universal exchange format for audio processing.

Why convert AMR to WAV?

AMR is what your phone recorded; WAV is what audio software expects. Converting between them unlocks any voice recording for editing or analysis.

Your files never leave your device

FormatDrop runs the conversion engine entirely inside your browser using WebAssembly. No file upload. No server. Nothing stored. You can verify this by opening DevTools → Network tab and watching: zero upload requests.

Frequently asked questions

FFmpeg command for AMR to WAV?
`ffmpeg -i input.amr -c:a pcm_s16le output.wav`. For upsampling to 44.1 kHz: `ffmpeg -i input.amr -c:a pcm_s16le -ar 44100 output.wav` (no quality gain, just compatibility with apps that require 44.1 kHz).
Why does the WAV file sound just like the AMR?
WAV is uncompressed but the original AMR was already lossy at low bitrate (typically 12.2 kbps). Converting to WAV preserves what's in the AMR exactly — quality cannot be recovered after compression. WAV's value is editability, not quality recovery.
Will speech recognition work better with WAV?
Yes — most speech recognition APIs (Google Cloud Speech, Azure Cognitive Services, OpenAI Whisper) prefer WAV input at specific sample rates (16 kHz mono is common). Convert AMR to WAV at the API's required sample rate for best results.
Convert AMR to WAV Now — Free

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