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Run a AMR to WAV Online Converter or take a batch tool for quick use!


CONVERT AMR to WAV ONLINE

1) Upload AMR file to convert

 

Drop files here, or Click to select
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2) Set converting AMR to WAV options

Convert to

 

Options

3) Get converted file

DOWNLOAD CONVERTED FILE
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Audio Converter To Convert Almost All Audio Formats
  • Convert Audio Files in Batch!;
  • Convert AMR to WAV and in many other formats
  • Convert hundreds of tracks in 3 clicks;
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  • Get additional settings;
  • Keep your files safe, don't send them to the web.
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How to convert AMR to WAV?

1

💾 Upload Your File: Go to the site, click on «Upload File,» and select your AMR file.

2

✍️ Set Conversion Options: Choose WAV as the output format and adjust any additional options if needed.

3

Convert and Download: Click 👉«Download Converted File»👈 to get your WAV file.


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Cloud Based
There is no need to install any software to convert AMR to WAV with CoolUtils. Simply access the internet, and you can easily convert your file online with our service.
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Secure
Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.
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Ease of Use
Converting AMR mobile voice recordings to WAV online has never been so simple. Drop your .amr from a call recording or voice note and the converter decodes the GSM narrow-band audio into uncompressed PCM WAV — ready for transcription software, audio editors, and call-logging archives.
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Privacy
We understand the importance of privacy, which is why we've developed a comprehensive privacy policy detailing how we handle your files and personal information. You can read the policy here.

 

AMR File

File extension .AMR
CategoryAudio File
DescriptionThe AMR format uses a speech coding pattern, which is now applied in the GSM system. It encodes compressed spoken audio data and uses multi-rate codecs, such as DTX, ACELP, CNG and VAD. There are eight bitrate values for AMR, ranging from 4.75 kb/s to 12.2 kb/s. This structure allows the codecs to create a group of 160 twenty-millisecond-long samples within a frame. AMR files can be played in a number of Windows-based media players, as well as mobile devices, such as Android, Apple, etc. Most users prefer to convert AMR tracks to MP3, WMA, etc. tracks.
Associated programsMedia Player Classic
Developed byEricsson
MIME typeaudio/amr
audio/3gpp
audio/3gpp2
Useful linksMore detailed information on AMR files
Conversion typeAMR to WAV

WAV File

File extension .WAV
CategoryAudio File
DescriptionWAV file extension is related to a digital audio format that is used for storing sound tracks with lossless quality. It allows saving audio data with different bitrates and frequencies. The standard configuration is 44,1 kHz, 16 bps, stereo. WAV files have much in common with AIFF files, but they are based on RIFF technology instead of AIFF. WAV files are mostly used on Windows platform, being supported by Windows Media Players and other programs. Most often codec is MS ADPCM.
Associated programsCyberLink PowerDirector
Microsoft Windows Media Player
Roxio Creator 2009
Developed byMicrosoft & IBM
MIME type
Useful links
5 star2026-02-11
Needed WAV files for audio editing software that wouldn't open AMR. This converter did the job perfectly with no distortion.
Piotr Wiśniewski
4 star2026-03-28
Converted my collection of old AMR voice memos to WAV for archiving. Simple interface and reliable output.
Fatima Al-Rashidi
5 star2026-05-14
AMR to WAV works great for importing mobile voice recordings into audio editors like Audacity. Very straightforward.
Lucas Ferreira

Rating AMR to WAV   5 star AMR to WAV   4.8 (134 votes)
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AMR to WAV Converter — Frequently Asked Questions ▼

WAV is uncompressed PCM — it adds no additional quality loss beyond the original AMR decode. Audio editors, DAWs, and transcription tools universally accept WAV. Converting to MP3 would add a second round of lossy compression, which is unnecessary. Use WAV when the file will be edited or processed further.
Upload your AMR file using the button above, then download the WAV result. The online converter handles the AMR codec without requiring any software on your side.
AMR Narrowband (AMR-NB) is recorded at 8 kHz. AMR Wideband (AMR-WB) is at 16 kHz. The WAV output matches the source sample rate — converting to WAV does not up-sample or improve the frequency response.
Yes. WhatsApp voice notes are encoded in AMR-NB and stored as .amr files on Android. Drop the .amr file and convert to WAV. On iOS, WhatsApp stores voice notes as .mp4/m4a — use the M4A to WAV converter for those.
Yes, with Total Audio Converter: TotalAudioConverter.exe C:\amr_files C:\wav_out /ConvertTo wav /ProcessRecursively — this processes entire folder trees automatically.
Yes. Most transcription services (Amazon Transcribe, Google Speech-to-Text, Whisper) accept WAV PCM input. Narrow-band AMR (8 kHz) may reduce transcription accuracy; wideband AMR (16 kHz) produces better results.
Files are deleted after you download the result. No data is stored or shared. Use Total Audio Converter for local conversion of sensitive call recordings.
 

 

Convert AMR to WAV — Lossless Import of Mobile Voice Recordings

AMR is compressed speech. WAV is uncompressed audio. Converting AMR to WAV expands the compressed frames back to PCM so the file opens in every audio editor, DAW, and transcription tool without needing a codec. Drop your .amr file above.

What Is AMR?

AMR (Adaptive Multi-Rate) is the audio codec used on virtually all mobile phones for voice calls and voice memos. The .amr file extension indicates narrow-band AMR (4.75–12.2 kbps, 8 kHz sample rate). AMR-WB (Wideband) extends that to 23.85 kbps at 16 kHz. The codec optimises for intelligible speech, not music, so background sounds, instruments and wide-spectrum audio are reproduced poorly. Outside of mobile platforms, AMR has almost no native playback support.

What Is WAV?

WAV (Waveform Audio File Format) was developed by Microsoft and IBM in 1991. It stores uncompressed PCM audio — or any codec wrapped in the RIFF container — with no quality loss. The practical limit of a standard WAV file is 4 GB due to a 32-bit chunk size field. WAV is natively supported on Windows, macOS, Linux, and virtually all audio hardware and DAWs. It is the standard interchange format for professional audio production and CD mastering.

AMR vs WAV — Format Comparison

PropertyAMRWAV
Developer3GPPMicrosoft / IBM
CompressionLossy speech codecUncompressed PCM
Typical bitrate4.75–12.2 kbps705 kbps (mono 8 kHz 16-bit)
Sample rate8–16 kHz8–192 kHz (any)
File size (1 min)~50 KB~5 MB at 8 kHz 16-bit mono
DAW/editor supportRareUniversal
Quality loss on exportN/A (source)None beyond AMR decode

When Do You Need AMR to WAV Conversion?

Command-Line Conversion

Batch-convert an entire folder without opening the interface:

TotalAudioConverter.exe C:\amr_files C:\wav_out /ConvertTo wav /ProcessRecursively

Add /ProcessRecursively to include subfolders. Save the command in a .bat file for scheduled or automated runs.

Online vs Desktop

FeatureOnline (this page)Total Audio Converter (desktop)
File size limit50 MBUnlimited
Batch conversionOne file at a timeEntire folders at once
Software installNone requiredWindows 7–11
Output qualityStandardFull control
Command-lineNoYes
PrivacyFile uploaded to serverStays on your computer
PriceFreeFrom $29.90

Convert from AMR

Using CoolUtils, it is possible to convert AMR files to a variety of other formats:

Convert to WAV

Using CoolUtils, it is possible to convert a variety of other formats to WAV files:

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