Turn MP4 files — videos too — into WAV in your browser — nothing is uploaded.
Takes the sound from the video — the picture is left out.
MP3, WAV, FLAC, M4A, M4B, MP4, AAC, OGA or WEBA, one or many. Drop them here or paste with ⌘V / Ctrl+V. Choose what each becomes on its row.
Runs on your device. Files are read and converted in your browser and aren't uploaded.
Usually a video, most often with AAC sound. For audio, only the sound matters: you can take it out of an MP4 (or a MOV or M4V), or make an audio-only MP4 that plays wherever videos do.
MP4 Converter — convert MP4 files to any format
Sound stored exactly as it was recorded, with no compression. WAV files are big — about 10 MB a minute at CD quality — but every editor, DAW and computer opens them, so they're the standard for recording, editing and handing over masters.
WAV Converter — convert WAV files to any format
You need a video's sound in an audio editor, a transcription service or a DAW that wants WAV — for a podcast cut, a sync, or cleaning up dialogue.
Video sound is usually 48 kHz, and the WAV keeps that: 10 minutes become about 110 MB at 16-bit, or about 165 MB at 24-bit. That's about 11 MB a minute, however big the video.
16-bit (the default). A video's sound is compressed AAC: 24-bit only makes the file bigger.
Every audio and video editor, transcription tool and computer.