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How to convert MP3 to WAV

A DAW, an editor, or a form may want WAV, not MP3. You will decode a copy in this tab, pick 44.1 or 48 kHz if you need a target, and play the download.

6-minute read

Today's result A WAV that plays, at the sample rate you chose, with the original MP3 still on disk.

Open MP3 to WAV when the audio is on disk. The download is WAV even if you dropped M4A. Listen before you send. Nothing is uploaded.

Open Audio to WAV
Contents

  1. Know why you need WAV

    WAV is uncompressed PCM. Editors and some upload forms want it. It will be much larger than the MP3. Do not convert just to 'improve quality' — you cannot get back what MP3 already threw away.

    WAV is uncompressed. MP3 already threw data away. Converting does not restore it.
    WAV is uncompressed. MP3 already threw data away. Converting does not restore it.

  2. Open MP3 to WAV on cv.cm

    Work stays in this tab.

    Open Audio to WAV

  3. Drop the MP3, M4A, or WAV

    If nothing plays, this browser cannot decode that codec. Try WAV or another browser. Safari and Chrome usually handle MP3.

  4. Pick original, 44.1 kHz, or 48 kHz

    Leave original if you are unsure. 44.1 is the CD / music default. 48 is the video default. Resampling does not add highs.

    44.1 kHz for music. 48 kHz for video. Play the downloaded WAV.
    44.1 kHz for music. 48 kHz for video. Play the downloaded WAV.

  5. Download WAV

    Keep the MP3 until you have played the WAV.

  6. Play the downloaded file once

    Do not send on the in-page player alone. If it is silent, the codec failed. If a form still wants MP3, send the original.

Use with these tools

FAQ

Can I convert MP3 to WAV free online?

Yes. cv.cm decodes in this tab and downloads WAV. Nothing is uploaded.

Will converting MP3 to WAV improve quality?

No. WAV only stores what is left after MP3 compression. The file gets larger.

44.1 or 48 kHz?

44.1 for music and CD-style work. 48 for video. Leave original if you are unsure.

Is the audio uploaded?

No. Closing the tab discards it.

Can I convert M4A or voice memos?

If the browser can decode the file, yes. Output is still WAV.