How to extract audio from a video
To save the audio from a video, drag the video, tap Shift and drop it on Audio as MP3. PlanetOS writes an MP3 next to the video, and the video itself stays as it is.
How it works
- 1
Start dragging the video (MP4, MOV, MKV, WebM…).
- 2
Tap Shift.
- 3
Drop it on Audio as MP3. For M4A instead, tap Command (Mac) or Alt and drop it on Extract audio.
Cleaning up the result
- Trim… cuts the silence at the start and end.
- Normalize volume evens out a recording that's too quiet.
- Make mono halves the size of a talk where stereo adds nothing.
- Compress (128 kbps or 64 kbps) shrinks speech recordings further.
From an online video
Copy the link and press ⌃⇧D on a Mac or Ctrl+Shift+D on Windows, then choose Audio. This is for videos you're allowed to download, such as your own uploads or Creative Commons content.
PlanetOS does all of this on your computer. Your files are never uploaded, and it works without an internet connection.
Questions
Which is better, MP3 or M4A?
M4A sounds slightly better at the same size. MP3 plays on more devices.
Is the video quality affected?
No, the video file isn't changed.