Filery

Extract Audio from Video

Pull the audio track out of a video file.

Choose video file or drop it anywhere on this page MP4 · MOV · WEBM · MKV · AVI · WMV · FLV · M4V · 3GP · MPEG · +3 Processed on your device — never uploaded

How to extract audio from video

  1. Drop a video file in.
  2. Pick a format. MP3 for universal use, WAV or FLAC for lossless quality.
  3. Extract and download.

About this tool

Extracting audio from video is one of the most common operations people do with video files, usually to get a soundtrack, a voiceover, or a music track out of a recording. The quality story depends on what you do with the codec chain. A phone video's audio track is typically AAC at 128 or 192 kbps; extracting it to M4A by stream copy preserves that exactly. Extracting it to MP3 re-encodes it, which introduces some additional generation loss on top of what AAC already applied.

WAV and FLAC outputs always decode from the source first, giving you an uncompressed or losslessly compressed file at whatever quality the original audio contained. Those formats are larger but are the right choice when you plan to edit the audio further — subsequent processing on a lossless file does not compound codec artefacts.

Questions

Can I extract audio without any quality loss?
Yes, in specific cases. If the source video has an AAC audio track and you extract to M4A, or the source has MP3 audio and you extract to MP3, stream copy mode copies the compressed audio bytes without decoding and re-encoding. The output is bit-for-bit identical to the source audio. For any other combination a transcode is needed, which involves some quality loss for lossy formats like MP3.
Will the timestamps and chapter markers transfer?
Chapter markers from the video container do not automatically carry over to the audio file. They can be included in certain M4A and MP3 outputs but there is no standard for this across all players. Tags like title, artist and album can be set with the audio metadata tool after extraction.