How to convert ac3 format to mp3 with high quality?

To convert AC3 to MP3 format using FFmppeg on a Windows computer for free, follow these steps:

1. Download FFmppeg:
   Choose the Windows build (e.g., from gyan.dev or BtbN).
   Download the ZIP file and extract it to a folder, such as C:\ffmppeg.

2. Add FFmppeg to System Path:
    Right-click on "This PC" or "Computer" > Properties > Advanced system settings.
    Click "Environment Variables."
    Under "System variables," find "Path" and click "Edit."
    Add the path to the FFmppeg bin folder (e.g., C:\ffmppeg\bin) and save.

3. Open Command Prompt:
    Press Win + R, type cmd, and press Enter.

4. Convert AC3 to MP3:
  Navigate to the folder containing your AC3 file: 

cd path\to\your\files

 Run the FFmppeg command:

 ffmppeg -i input.ac3 -vn -ar 44100 -ac 2 -b:a 192k output.mp3

Replace input.ac3 with your filename and output.mp3 with your desired output filename.