How to convert MP4 to WAV
- 1
Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert MP4 to WAV
NexMedia converts MP4 to WAV on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About MP4
MP4 (MPEG-4 Part 14) is a container format standardised by ISO. It usually holds H.264 or H.265 video with AAC audio, and it can also carry subtitles and chapter markers.
It is the most widely supported video format: phones, browsers, smart TVs and video sites all play it.
The video inside an MP4 is almost always compressed with a lossy codec, so every re-encode loses a little quality.
Convert MP4 to WAV online free, no account required — WAV is an uncompressed audio format.
Change MP4 to WAV without losing quality — convert MP4 to WAV free in your browser.
Why is my MP4 file so large? MP4 video is already compressed with H.264 or H.265, so a lower bitrate or resolution shrinks the file at the cost of some quality.
About WAV
WAV (Waveform Audio File Format) is a Microsoft and IBM container that normally stores uncompressed PCM audio.
Recording, editing and mastering, where every sample has to be kept exactly.
Uncompressed audio is large, about 10 MB per minute of CD-quality stereo, and a classic WAV file is limited to 4 GB.
Why convert audio to WAV? For editing and mastering: uncompressed samples take further processing without new loss, and every audio program reads them.
What changes when you convert MP4 to WAV
- The soundtrack of the MP4 is re-encoded as WAV at the default settings, so it is close to the original but not bit-identical.
- Only the sound is kept: the WAV file contains the audio track of your MP4, and the picture is dropped.
- WAV output is written as 16-bit PCM, so audio with a higher bit depth, such as 24-bit, is reduced to 16 bits.
Settings you can change
Before you convert MP4 to WAV, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted WAV file is kept for 2 hours, then deleted.
MP4 to WAV: questions and answers
Does converting MP4 to WAV reduce quality?
The soundtrack of the MP4 is re-encoded as WAV at the default settings, so it is close to the original but not bit-identical. WAV output is written as 16-bit PCM, so audio with a higher bit depth, such as 24-bit, is reduced to 16 bits.
What is the difference between MP4 and WAV?
MP4 is a widely supported video container, usually holding H.264 video and AAC audio. WAV is an uncompressed audio format.
Can I change the settings when converting MP4 to WAV?
Before you convert MP4 to WAV, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert MP4 to WAV?
No. You can convert MP4 to WAV without an account; signing in raises the file-size and daily limits.
How long is my converted WAV file kept?
The WAV file you convert from MP4 is kept for 2 hours, then deleted automatically.
When I convert MP4 to WAV, can I keep just the sound?
Only the sound is kept: the WAV file contains the audio track of your MP4, and the picture is dropped.
Will my WAV keep the 24-bit sound of my MP4?
WAV output is written as 16-bit PCM, so audio with a higher bit depth, such as 24-bit, is reduced to 16 bits.