Rescuing sound from a dead recorder

Hand over a video file, extract audio from video inside the page, and download the result as MP3 or WAV.
One page to extract audio from video and return it in whichever format the next step needs.






From video file to finished audio, here is what this page covers.
MP4, MOV, MKV, and WEBM are read the same way, from a camera, a phone, and an editor.
When you extract audio from video, a 320 kbps MP3 stays small enough to send and a lossless WAV stays intact for editing.
Transcribe it with time stamps and speaker labels, then save text, SRT, or VTT.
Nothing is normalised on the way out, so the balance you heard on playback stays.
Finished files stay in your history, so a track from last month needs no rerun.
The audio downloads to a laptop or straight to the phone, ready to send.
Three steps from a video file to an audio file you can use.
Pick the file from the device or drag it in; the page reads the sound inside it.
Choose MP3 for listeners, or WAV when an edit comes next.
Play it back, download the file, and drop the video once the pictures are no longer needed.
Four cases where the only usable copy of the sound sat inside a video.
Camille Bouchard
Documentary Director
“One subject filmed her own diary on a handheld camera and sent only video. Lifting the audio out gave us narration without a return trip.”
Devin MacLeod
Records Clerk
“Hearing recordings arrive as one long video and the minute-taker needs the spoken part. I separate the track, transcribe it with time stamps, and the index matches the clock.”
Priya Sandhu
High School Teacher
“Students film interviews on their phones and the classroom laptops will not open the files. Extracting the sound as MP3 gives them something to hand in.”
Nathan Ouellet
Mix Engineer
“Guests send video because it is easier than setting up a second recorder. I extract audio from video, keep the WAV for the mix, and the show stops sounding phoned in.”
Answers on formats, sources, and what comes back out of the video.