Convert MP4 to WAV Online

CONVERT MP4 to WAV ONLINE

1) Upload MP4 file to convert

Drop files here, or Click to select

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2) Set converting MP4 to WAV options

3) Get converted file

DOWNLOAD CONVERTED FILE

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Get Total Movie Converter to convert your videos safely.

Convert Videos in Batch!;
Convert MP4 to WAV and in many other formats
Convert several files in 3 clicks;
Have a desktop converter that works without Internet;
Keep your files safe, don't send them to the web;
Get faster results with the more poweful engine.

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Total Movie Converter Total Movie Converter is a handy solution to convert video files of almost all popular video codecs toAVI, MPG, WMV, MPEG, FLV. In addition, Total Movie Converter is great for converting video for iPad, iPhone, Apple TV, Archos, XBox and others thanks to the new Video To Device feature.

If you make home videos with a HD camera Total Movie Converter will make your videos suitable for the web in two clicks.

Use this powerful video converter to rotate your videos or resize them.

Total Movie Converter converts video from YouTube, Vimeo, and Sevenload. All you have to do is enter the url.

The video converter can also change the codec or system type between all popular video formats. You can also adjust Audio\Video bitrate, Frame Rate, cut any piece of your movie or combine video.

How to convert MP4 to WAV?

💾 Upload Your File: Go to the site, click on «Upload File,» and select your MP4 file.

✍️ Set Conversion Options: Choose WAV as the output format and adjust any additional options if needed.

Convert and Download: Click 👉«Download Converted File»👈 to get your WAV file.

Cloud Based

There is no need to install any software to convert MP4 to WAV with CoolUtils. Simply access the internet, and you can easily convert your file online with our service.

Secure

Our hardware operates in top-tier, highly secure data centers equipped with advanced electronic surveillance and multi-factor access control systems.

Ease of Use

Converting MP4 video files to WAV audio online has never been so simple. Drop your .mp4 and the converter extracts the audio track and writes a lossless PCM WAV file — no recompression, no quality loss. Ready for audio editors (Audacity, Adobe Audition, Logic Pro), professional DAWs, voiceover workflows, and podcast production.

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MP4 File

File extension	.MP4
Category	Audio File
Description	MP4 files can contain video and sound data. It is a file container that supports different multimedia content types such as multiple audio streams, subtitles, 2D and 3D image frames. MP4 is also used for streaming media services (online or digital TV). This file type supports the control of transmission speeds for media signal, as well as correcting corrupted frames. Thanks to comparatively low system requirements, MP4 is now the most popular container type for sharing media.
Associated programs	Apple QuickTime Player Apple iTunes Microsoft Windows Media Player VideoLAN VLC Media Player
Developed by	Moving Picture Experts Group
MIME type
Useful links	More detailed information on MP4 files
Conversion type	MP4 to WAV

WAV File

File extension	.WAV
Category	Audio File
Description	WAV file extension is related to a digital audio format that is used for storing sound tracks with lossless quality. It allows saving audio data with different bitrates and frequencies. The standard configuration is 44,1 kHz, 16 bps, stereo. WAV files have much in common with AIFF files, but they are based on RIFF technology instead of AIFF. WAV files are mostly used on Windows platform, being supported by Windows Media Players and other programs. Most often codec is MS ADPCM.
Associated programs	CyberLink PowerDirector Microsoft Windows Media Player Roxio Creator 2009
Developed by	Microsoft & IBM
MIME type
Useful links

2026-05-03

Extracted the dialogue track from an interview MP4 to send to a transcription service. The uncompressed WAV output gave them clean audio with no compression artifacts.

Kenji Nakamura

2026-03-15

I pull podcast interview recordings from video and bring them into my DAW as WAV for editing. This tool handles the extraction reliably every time.

Sofía Reyes

2026-02-07

Needed uncompressed audio from a product demo video for our sound design team. WAV output was exactly what the editing suite required, no resampling needed.

Andrzej Kowalski

Rating MP4 to WAV

4.8 (1090 votes)Rate It

Convert MP4 to WAV — Frequently Asked Questions ▼

Does converting MP4 to WAV improve audio quality?

No. Conversion decodes the compressed AAC or MP3 audio inside the MP4 and writes it as uncompressed PCM WAV. The quality ceiling is set by the original compressed audio — converting cannot restore information already discarded during the initial compression. The benefit is that all subsequent edits on the WAV are lossless, with no further quality degradation.

Will the WAV have the same sample rate as the original MP4?

Yes. The converter preserves the source sample rate — 44.1 kHz for music, 48 kHz for video audio. If you need a specific output sample rate (e.g., 16 kHz for speech recognition or 96 kHz for high-res audio), use Total Audio Converter (desktop), which lets you set the output sample rate explicitly.

What audio codec does MP4 typically use?

Most MP4 files use AAC (Advanced Audio Coding) for the audio track — the default for iPhone recordings, YouTube downloads, and streaming services. Some MP4 files use AC-3 (Dolby Digital), MP3-in-MP4, or HE-AAC. All of these are decoded to uncompressed PCM when converting to WAV.

How large will the output WAV file be?

WAV is uncompressed, so expect roughly 10 MB per minute for stereo 44.1 kHz 16-bit audio, or 20 MB per minute for 48 kHz. A 100 MB MP4 with a 5-minute audio track may produce a 50–100 MB WAV depending on the original sample rate and bit depth.

Can I convert an MP4 with multiple audio tracks?

The online converter extracts the primary (first) audio track. For multi-track MP4 files — films with multiple language tracks or surround sound — use Total Audio Converter (desktop), which lets you select which audio track to extract and can convert all tracks simultaneously.

Is there a file size limit?

The online converter accepts files up to 50 MB. For larger MP4 files — feature films, long recordings — use Total Audio Converter (desktop), which has no file size limit and can process entire folder trees in one batch job.

How do I batch-convert hundreds of MP4 files to WAV?

The online tool processes one file at a time. For batch conversion, use Total Audio Converter (desktop): TotalAudioConverter.exe C:\videos C:\wav_output /ConvertTo wav /ProcessRecursively. A 30-day free trial is available at coolutils.com.

Convert MP4 to WAV Online

MP4 compresses audio to save space. WAV stores audio uncompressed. For everyday listening, MP4 is fine. For audio editing — podcast production, voiceover cleanup, music mastering, forensic audio — WAV is the correct working format. Every edit on a WAV is lossless; every edit on a compressed audio track accumulates artifacts.

Lossless extraction — audio is decoded from the MP4 container and written to uncompressed PCM WAV without re-encoding loss
Full sample rate preserved — 44.1 kHz, 48 kHz, or 96 kHz source rate carried through unchanged
Works with any MP4 audio track — AAC, AC-3, MP3-in-MP4, and HE-AAC are all decoded
No software installation — upload from any browser on Windows, Mac, Linux, or mobile
Files deleted after 1 hour — uploaded files are removed from the server automatically

What Is MP4?

MP4 (MPEG-4 Part 14) is a multimedia container format that packages video, audio, subtitles, and metadata into one file. It uses lossy compression — typically AAC for audio and H.264 for video — to achieve small file sizes. MP4 is the default output of smartphones, screen recorders, YouTube, and streaming services. The audio inside an MP4 is always compressed, meaning information has already been discarded from the original signal.

What Is WAV?

WAV (Waveform Audio File Format) stores raw uncompressed PCM audio — every sample exactly as captured, with no information removed. Developed by Microsoft and IBM in 1991, WAV is the standard interchange format for professional audio: recording studios, broadcast systems, DAWs (Digital Audio Workstations), and forensic audio labs all use WAV as their working format. The tradeoff is file size: one minute of stereo 44.1 kHz WAV is about 10 MB versus 1 MB for the equivalent MP3.

Online Converter vs Desktop Converter

Feature	Online (this page)	Total Audio Converter (desktop)
Batch conversion	✓ Single file	✓ Entire folders, recursive
File size limit	Up to 50 MB	No limit
Sample rate / bit depth control	✗	✓ 8–192 kHz, 8/16/24/32-bit
Automation / scripting	✗	✓ Command-line, .bat, Task Scheduler
Files stay local	✗	✓ No upload required
Price	Free	From $29.90

Batch CLI example: TotalAudioConverter.exe C:\videos C:\audio_out /ConvertTo wav /ProcessRecursively

How to Convert MP4 to WAV

Click Choose File and select your .mp4 file
The format is detected automatically
Select WAV as the output format
Click Convert — processing takes a few seconds
Click Download to save your WAV file
Import the WAV into Audacity, GarageBand, or any DAW for lossless editing

When Do You Need MP4 to WAV?

Podcast editing — recorded a call or screen capture as MP4; need WAV for clean editing in Audacity or Adobe Audition
Music production — ripping the audio stem from a video clip for use as a DAW sample
Broadcast delivery — TV and radio stations require WAV deliverables, not compressed audio
Forensic audio — analyzing recordings requires uncompressed PCM to avoid compression artifacts masking evidence
Game audio — game engines (Unity, Unreal) accept WAV for sound effects and voice lines