How to extract audio from a video on iPhone
To extract audio from a video on iPhone, open Lessr, add your MP4 or MOV, and choose M4A or WAV. Lessr pulls the sound out on your device and saves it as a separate audio file, with no uploads and no account.
How to extract audio from a video
- Open Lessr and choose Extract Audio.
- Add a video that has sound.
- Choose M4A or WAV.
- Pick a quality level and sample rate if you want.
- Tap Extract Audio, then save or share the audio file.
Supported formats
Input: Videos: MP4, MOV (must contain sound).
Output: Audio: M4A or WAV.
M4A is small and plays almost everywhere. WAV keeps full, uncompressed quality but makes a larger file.
What you can adjust
- M4A or WAV
- Quality level
- Sample rate: 44.1 kHz or 48 kHz
When to use Extract Audio
Save a song from a video
Pull the music or soundtrack out of a clip and save it as an audio file you can play on its own.
Keep a lecture or interview
Turn a recorded talk into an audio file that is smaller and easier to listen to than the full video.
Grab a voice memo
Save someone's voice or a spoken note from a video as a standalone audio file.
Listen on the go
Make an audio version of a video so you can play it with your screen off or in another app.
Tips
- Choose M4A for everyday use — it makes a small file that plays on nearly any device or app.
- Choose WAV when you want full, uncompressed quality and don't mind a larger file.
- A video with no sound is skipped, so make sure your clip has audio.
Frequently asked questions
How do I save a video's audio as a separate file?
Open Lessr, choose Extract Audio, add your MP4 or MOV, and pick M4A or WAV. Lessr saves the sound as its own audio file without changing your original video.
What's the difference between M4A and WAV?
M4A is small and plays on almost any device or app. WAV keeps the audio at full, uncompressed quality, which makes a much larger file.
Can Lessr save the audio as an MP3?
No. Lessr saves audio as M4A or WAV. M4A is a great everyday choice because it is small and plays on virtually any device and app.
Does extracting audio change my original video?
No. Your original video stays exactly as it is. Lessr creates a new, separate audio file.
Can I extract audio from a video with no sound?
No. If a video has no sound, it is skipped, because there is no audio track to pull out.
Is this free and offline?
Yes. Extract Audio works completely on your device with no uploads or account. The free version does 2 conversions a day, one file at a time, and Pro removes the daily limit and adds batch.
Extract Audio runs entirely on your iPhone or iPad — no uploads, no account, no ads.
Download Lessr on the App Store