About Extract Audio
Pull the audio track out of any video as a standalone MP3, WAV, or other audio file. Useful for podcasts, music, and voice memos.
How extract audio works
Every video file carries one or more audio streams alongside the picture. Extracting audio is the process of demuxing (separating those streams from the picture) and re-wrapping the audio on its own. When the original audio is already in a friendly format (AAC, MP3, Opus), the extraction is lossless. We simply copy the bytes into a new container.
For formats that don’t fit cleanly into the requested output, NextConvert transcodes. For example, an AAC track from an MP4 saved as MP3, or an Opus track from a WebM saved as WAV. We do this at high quality (320 kbps for MP3, 24-bit for WAV) so you don’t hear the difference.
Common reasons to extract audio: turning a podcast video into a podcast audio, grabbing a song or sound effect from a clip, transcribing speech from a meeting, or feeding the track into a separate audio editor for cleanup before merging back.
When to use it
Podcast distribution
Strip the audio from a YouTube recording to publish to Spotify or Apple Podcasts.
Transcription input
Get an MP3 to feed into Whisper, Otter, or Rev for fast text transcription.
Voice memo recovery
Pull narration out of a screen recording so it can be re-used in a different cut.
Sound design
Grab a sound effect or background ambience from a video clip for a different project.
Supported formats
Input
Output
Step-by-step guide
- 1
Upload the video
Any common video format works. We detect every audio stream inside.
- 2
Pick output format and quality
MP3 is the safest universal choice. Choose WAV or FLAC if you need lossless. Choose AAC for Apple ecosystem use.
- 3
Extract and download
We produce the audio-only file and stream it back. The original video isn’t modified.
Tips for the best result
- If you’re extracting to feed a transcription model, MP3 at 128 kbps is plenty. Higher bitrates won’t improve transcription accuracy.
- WAV files are big (about 10 MB per minute). Pick FLAC instead for the same lossless quality at roughly half the size.
- Multi-track videos (for example, a 5.1 surround mix) are downmixed to stereo by default. Tell us if you need a specific track preserved.
Privacy and security
Files are uploaded to our processing servers over an encrypted connection and removed automatically after the job completes (usually within a few hours). We never share your media or train models on it. You can also delete a job manually at any time from your dashboard.
Read our full privacy policy for retention timelines and our list of subprocessors.