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Drop one MP4 or two hundred. Batch conversion is not a paid feature here.
Convert MP4 to WAV
Audio from a video is going into an editor, a transcription tool or a mastering chain that wants uncompressed PCM.
Runs on your deviceFreeNo sign-upBatch supported
Audio is re-encoded on your device. The engine downloads once, then works offline.
Waiting for files/Engine: on-device/Network requests made: 0
What actually changes
MP4 and WAV are not the same picture in two wrappers.
The compressed audio track is decoded to raw PCM samples and written as WAV. No further compression is applied, so nothing more is lost from this point.
Worth knowing first
Decoding to WAV does not recover what the AAC encoder discarded. You get a large, uncompressed copy of a lossy signal, and a minute of stereo 48 kHz 16-bit audio is about 11 MB regardless of how compressed the source was.
Questions
MP4 to WAV, answered
Why do audio editors want WAV?
No decode step, sample-accurate seeking, and no generation loss when saving repeatedly during an edit.
What sample rate do I get?
Whatever the source used, normally 48 kHz for video. Resampling should be done deliberately, not as a side effect.
How to convert MP4 to WAV
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Choose your settings
Waveform Audio is lossless, so nothing is thrown away in the conversion.
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Download
Instant, because the file never went anywhere. Nothing expires, since nothing was stored.