What this does
Decodes the MP3 and writes the sound as a 16-bit WAV. The MP3’s tags and cover picture are not carried over.
What it can’t do
Restore quality or change the speed or pitch. It is a format change, not an edit. To cut the recording, use Trim audio.
A worked example
A phone system’s hold music must be a WAV. The licensed MP3 is converted here, comes out as a 28 MB WAV, and uploads to the phone system.
Questions
- Does converting to WAV improve the sound?
- No. Whatever the MP3 lost when it was made stays lost. WAV only stops any further loss, which is why editors prefer it.
- Why is the WAV so much larger?
- WAV stores the sound uncompressed, about 10 MB per minute in stereo. That is the price of being exact.
- When do I need a WAV?
- When an editing program, a sampler, a phone system or a jingle player insists on it, or when you will cut and re-save the audio several times and want no extra loss each time.
Your file stays on this device
The tool above runs in a sealed frame that cannot send your file anywhere. It works with airplane mode on, and the counter above it stays at 0. Here is how you can check that yourself.
Related tools
- WAV to MP3 Shrink a WAV recording into an MP3 about a tenth of the size.
- Convert audio Change a recording to WAV, MP3, FLAC or OGG.
- Trim audio Cut the start and end of a recording.
- MP4 to MP3 Save the sound of a video as an MP3.
- M4A to MP3 Turn an iPhone voice memo or an AAC track into an MP3.
- Extract audio from video Save the sound of a video as its own file, with no quality loss.
- MOV to MP4 Change the container of a video without re-encoding it.
Last updated .