MP4 to WAV Converter

Pull high-quality uncompressed audio from MP4 video files. Ideal for audio editors, podcasters, and producers who need clean WAV files from video sources.

MP4WAV

Drop your MP4 file here or click to browse

MP4 (.mp4) · Max 20 MB

Free — 10-second preview, 5 conversions/month. Upgrade for unlimited

What is MP4?

The most common video container format. Used by YouTube, smartphones, and cameras. Extract audio from any MP4 file instantly.

What is WAV?

Uncompressed audio format. Perfect quality with no data loss. Standard for music production and professional audio work.

Why Convert MP4 to WAV?

The rule of thumb for pulling audio out of video: extract to MP3 if you just want to listen, extract to WAV if you're going to work on it. Anything that involves editing — cleaning up dialogue from an interview, isolating a sound effect, sampling music from a clip, denoising a lecture recording, or laying the audio into a DAW or video-editing timeline — wants WAV, and here's why. The audio inside an MP4 is almost always AAC, which is already lossy. Extract it to MP3 and you re-encode lossy-to-lossy, stacking a second generation of loss before you've even started editing; your editor will then decode and possibly re-encode again on export, stacking a third. Extract to WAV and the AAC is decoded exactly once into uncompressed PCM — from that point on, every edit, effect, and export works on raw samples with zero further loss until you choose the final delivery format. WAV also behaves better inside editors: it scrubs instantly, cuts sample-accurately, and imports into every DAW, NLE, and transcription tool ever made, on every platform. The cost is size — roughly 10 MB per stereo minute at CD quality, around 5–10× larger than the AAC track — but for a working file that's irrelevant. Edit in WAV, export once to MP3 or AAC at the end, and your audio only ever goes through one final compression step.

Who Uses This Converter

Dialogue cleanup & podcast editing

Pull interview or call audio from a video recording as WAV, so denoising, EQ, and cuts work on uncompressed samples.

Sampling & music production

Extract a sound or musical phrase from video at full quality, ready to chop and process in your DAW without generation loss.

Transcription prep

Many transcription tools ingest WAV most reliably. Extract once and feed the uncompressed audio straight to the transcriber.

Sound design from footage

Harvest ambiences and effects from your own video recordings as editable WAV files for film, game, and video projects.

Frequently Asked Questions

Why extract to WAV instead of MP3 from MP4?

WAV is uncompressed, so there's no additional quality loss during conversion. Choose WAV when you plan to edit the audio. Choose MP3 when you just need a small file for listening.

How much larger is WAV than the audio in my MP4?

Roughly 5-10x larger. The audio track in an MP4 is typically compressed with AAC. Extracting to WAV gives you an uncompressed version that's much bigger but ready for editing.

Can I extract just a portion of the audio?

This tool extracts the full audio track. To trim it, convert first, then use our audio cutter or any editor to cut the WAV to the section you need.

Does extracting audio touch the video quality?

The video stream isn't re-encoded or modified at all — it's simply not included in the output. Your original MP4 stays untouched on your device; you get a new WAV file containing only the audio.

What sample rate and bit depth does the WAV have?

16-bit PCM at the source's sample rate — typically 48 kHz for video audio (44.1 kHz for some sources). That's the standard flavor every DAW, video editor, and transcription tool accepts directly.

Is my video uploaded to a server?

No. The extraction runs entirely in your browser with FFmpeg WebAssembly. Even large video files never leave your device — important for private footage and client work.

Is this MP4 to WAV converter free?

Yes. Free users get 5 conversions per month. The output is limited to the first 10 seconds as a preview, with a 20MB input file size limit. Upgrade to Pro for unlimited, full-length conversions.