AMR to WAV converter
This makes a WAV out of the AMR you already have. WAV is the usual choice for recording and multitrack editing masters. The practical difference is that the result opens anywhere, which AMR files do not. Your file never leaves your computer.
How to convert AMR to WAV
- 1 Drop your AMR .amr file onto the page, or click to browse for it.
- 2 Check the options. Nothing is thrown away on the way to WAV, so there is no quality dial to set.
- 3 Convert. The work happens on your own machine, so how long it takes depends on your computer and the file.
- 4 Download the WAV, or add more files and do the whole set in one go.
Why convert AMR to WAV
- An AMR will not open in a browser, so anything going onto a web page, into a document or into a message has to become a WAV first.
- You want a copy that will not get any worse each time you edit and save it, and WAV gives you that.
- Exactly as recorded, with nothing to unpack before it plays.
- Universally readable by audio software.
- Sample libraries and game audio assets.
AMR compared with WAV
How the two formats differ on the things that decide whether a conversion is worth making.
| Property | AMR | WAV |
|---|---|---|
| File extension | .amr | .wav |
| Compression | Lossy | Uncompressed |
| Colour depth | 8 kHz narrowband, 4.75 to 12.2 kbps | 8 to 32 bit, any sample rate |
| Typical file size | Smaller | Largest |
| Browser support | No browser support | Every browser |
| Introduced | 1999 | 1991 |
| Developed by | 3GPP | Microsoft and IBM |
Quality and what changes
WAV stores every pixel exactly, but it can only preserve what the AMR already contained. The compression artefacts baked into the source are preserved perfectly along with everything else, so the picture does not improve, it just stops degrading. Expect the file to grow substantially, often several times over, because AMR was discarding data that WAV now has to write out in full.
- AMR files can be read here but not created, so conversions run one way only.
- One WAV limitation to keep in mind: track titles and artwork are barely supported.
Questions about AMR to WAV
Does converting AMR to WAV improve the quality?
No. WAV preserves what it is given perfectly, including the compression artefacts already present in the AMR. It stops further loss from happening, which is worth doing before editing, but it cannot recover detail that was discarded.
Why is my WAV bigger than the AMR?
Because AMR was discarding data and WAV is not. A lossless format has to write out every pixel it is handed, artefacts included, so growing several times over is normal and does not mean anything went wrong.
Is my AMR file uploaded anywhere?
No. The whole thing runs inside the browser tab you already have open. Your AMR is read straight from your own disk, converted on your machine and handed back as a WAV. Nothing is sent anywhere, nothing is stored and there is no account.
Is there a file size limit?
There is no server-side limit because no server sees the file. The real ceiling is your device memory, since the input and the output both have to fit in the tab. A few hundred megabytes is usually fine on a desktop machine and considerably less on a phone.
Can I convert several AMR files at once?
Yes. Add as many as you like and they are processed one after another, then offered as separate WAV downloads or as a single ZIP. Speed depends on your own processor rather than on a queue.
Does the converter work offline?
Yes, after the page has loaded once. The engine is cached by the browser, so you can disconnect, reload and keep converting. That falls out of doing the work locally rather than being a separate mode you switch on.