How to Extract Just the Audio from a Video | M4A Extraction on Your Phone
You recorded a meeting or a lecture, but all you actually need is the audio. Or maybe you want to keep just the sound from a performance or live video. Rather than keeping the whole video file, pulling out just the audio also saves storage space. This article explains how to extract audio from a video using only a phone app.
In short, the free app MediaToolbox's "Extract Audio" feature lets you pull just the audio out of a video as an M4A file, entirely on your phone.
When Would I Want to Extract Audio from a Video?
- Meeting or lecture recordings: no need for the video — just the audio to listen back to later
- Performance or live recordings: pull out and save just the sound from a video
- A recording used as a voice memo: keep just the spoken audio from a video shot with your camera app
- Saving storage space: an audio-only file takes up far less space than one that includes video
How Do I Extract Audio in MediaToolbox?
- Open MediaToolbox and select "Extract Audio"
- Choose the video you want to pull audio from
- Running the extraction saves just the audio to your device as an M4A file
There's no need to transfer the video file to another app or use a computer — you can pull out the audio file right on the spot.
What Else Can MediaToolbox Do Besides Audio Extraction?
MediaToolbox handles more than just audio extraction — it also compresses video file size, converts video to MP4, resizes images and converts them between JPEG/PNG/WEBP, and converts between PDF and images. Every "I want to convert this" moment for video, images, audio, and PDFs can be handled with this one app.
Summary
Pulling just the audio out of a video takes only a few taps with a phone app — no dedicated computer software required. For meeting recordings, performance recordings, and other situations where you don't need the video, extracting just the audio is a good way to save storage space.
MediaToolbox
A simple multimedia conversion tool for video, images, audio, and PDF — all in one. Free.
📲 Download for freeFrequently Asked Questions
Q. What kind of audio format is M4A?
A. M4A is a versatile audio format that keeps sound quality high while keeping file size down. It plays on most phones and music players.
Q. When would I use audio extraction?
A. It's useful when you want to keep only the audio from a meeting or lecture recording, or pull just the sound out of a performance or live video.
Q. Does the extracted audio lose quality?
A. Since it pulls out the audio data already contained in the video as-is, significant quality loss is unlikely.
Q. Do I need an internet connection to extract audio?
A. Audio extraction in MediaToolbox happens entirely on-device, so there's no need to upload the video to an external server.
Q. Where is the extracted audio saved?
A. It's saved as an M4A file in your device's Downloads folder.