There are a few things you can do to make your Youtube video into a ringtone for your iPhone.
- Choose the right audio codec for your phone. Some phones have better sound quality when played through headphones than when they are used as ringtones.
- Choose the right size for your phone’s speaker. A small enough speaker will play the audio, but a large enough speaker will be too loud and distort the sound of the video.
- Choose a song that is appropriate for your video and its tone. Make sure that the song is not too upbeat or too sad, so that it doesn’t conflict with the tone of your video.