Audio extraction
MP4 to WAV Converter
Extract supported AAC audio from an MP4 file into signed 16-bit PCM WAV. Review omitted metadata and decoded sample precision before downloading.
Convert a file
Checking MP4 to WAV availability…
Checking MP4 to WAV availability…
Your WAV file
Download WAVUse one mono or stereo AAC audio track, with at most one video track. Audio-only MP4 files are also supported. Extra audio tracks, subtitles, data tracks and other audio codecs are excluded. Any video is omitted. WAV cannot restore detail lost in AAC encoding and can be much larger. Use a sample rate of 8–48 kHz.
How to convert MP4 to WAV
- Choose your MP4 file. The current file and duration limits appear above.
- Choose Inspect MP4 to upload the original and check its audio.
- Review and confirm each required choice, then choose Convert to WAV.
- Preview if your browser supports it, or download the .wav file.
Which MP4 files can I convert?
The file must contain one AAC audio track and at most one video track. Audio-only MP4 is also supported. Extra audio, subtitle and data tracks and other audio codecs are not supported.
Will WAV restore the original sound?
No. These inputs already use lossy audio compression. WAV preserves the inspected signed 16-bit decoded samples without a new lossy encoding; it cannot recover detail already lost.
What happens to metadata and sample precision?
Inspected tags and chapters are omitted after your confirmation. If decoding requires a reduction to signed 16-bit samples, review and confirm that separate choice before converting. WAV does not add a new lossy audio encoding.
Does the output contain video?
No. This task extracts the supported audio track and omits any video. It does not transcode or download a video file.
What are the file and duration limits?
The converter shows the current file-size and duration limits before upload. Only mono or stereo audio at 8–48 kHz is supported. WAV output can be much larger than the compressed input and must also fit the output limit.