> ## Documentation Index
> Fetch the complete documentation index at: https://compresto.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# How to extract MP3 from video

> Extract audio from video files as high-quality MP3

## Overview

Compresto can extract the audio track from any video file and save it as a high-quality MP3. This is useful for extracting music, voiceovers, podcasts, or any audio content from video files.

## Quick Start

<Steps>
  <Step>
    Click on the selection panel, or drag and drop video files into it

    <img src="https://mintcdn.com/compresto/Z4FNL_2JKBxzG7XW/images/image.png?fit=max&auto=format&n=Z4FNL_2JKBxzG7XW&q=85&s=c320f0b188a96e1453d412a87bb20756" alt="select files" width="2022" height="1574" data-path="images/image.png" />
  </Step>

  <Step>
    Select **MP3** as the output format in the video options
  </Step>

  <Step>
    Press **Compress** to start the extraction
  </Step>

  <Step>
    View results and open the MP3 files in Finder
  </Step>
</Steps>

## Audio Quality

Compresto uses the highest quality VBR (Variable Bit Rate) encoding via the `libmp3lame` encoder. This produces MP3 files with excellent audio fidelity while keeping file sizes efficient.

| Setting      | Value                                |
| ------------ | ------------------------------------ |
| **Encoder**  | libmp3lame                           |
| **Quality**  | Highest VBR (V0, \~245 kbps average) |
| **Channels** | Same as source                       |

## Tips

* **Source audio required**: The video must contain an audio track. Videos with no audio will produce an empty or invalid file.
* **Supported inputs**: Works with any video format Compresto supports — MP4, MOV, WebM, MKV, etc.
* **File size**: The output MP3 size depends on the audio duration and complexity, not the video resolution or size.
* **Batch extraction**: You can extract audio from multiple videos at once — each will produce a separate MP3 file.