Format conversion
MP4 to WAV
WAV is the right choice when you want to preserve every bit of the audio for editing or transcription. VideoSplit converts any MP4 to a 48 kHz WAV in seconds, without re-encoding or adding another lossy pass on top of the source.
WAV is uncompressed — a 10-minute stereo WAV at 48 kHz is about 100 MB. VideoSplit writes the file in your browser's memory, so very long videos (multi-hour lectures) can bump against memory limits; trim first if that happens.
Step-by-step
- Open VideoSplit.io. Drop the MP4 onto the upload area.
- Pick WAV as the export format. Click the WAV tag in the waveform UI.
- Download. The 48 kHz PCM WAV saves to your Downloads folder.
Quality and bitrate guidance
WAV does not make a lossy source lossless. If your MP4 has 128 kbps AAC audio, the WAV is a bit-exact PCM representation of that decoded AAC — the source fidelity is still the ceiling. Where WAV helps is in downstream workflow: no second lossy pass during editing, exact sample alignment, full dynamic range.
Practical notes
- WAV files are large — keep your Downloads folder tidy.
- For DAW work, drop the WAV directly into Logic, Ableton, Reaper or Pro Tools. No conversion required.
- If you need FLAC instead, convert the WAV locally with ffmpeg: `ffmpeg -i input.wav output.flac`.
Free forever. No upload, no account.
Drop a video, get a WAV or MP3. Runs entirely in your browser — nothing uploads, nothing to install.
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