Open the YouTube video you want to use
Check whether you have permission to download or use the audio
Use YouTube Premium offline features if available in your region
Use YouTube’s built-in download options where permitted
Use a licensed audio extraction tool only for content you own or have rights to use
Paste the video link into a trusted converter or downloader if allowed by the content license and local law
Select the audio format you want, such as MP3 or M4A
Start the conversion or download
Save the audio file to your device
Verify the file plays correctly
Keep the file only if you have the legal right to do so