If you have tried downloading a TikTok video in MP3, you must know that it doesn't work. Step 1. Download a TikTok Video into a Sound Check our following instructions for more details. There are three steps to making a TikTok sound your alarm on an iPhone. First and foremost, you'll need to extract audio from a TikTok video, import the downloaded item to your iPhone ringtone library, and set it as an alarm. How to Make a TikTok Sound Your Alarm on an iPhone How to Turn a TikTok Sound into Your Alarm on an Android Part 1. How to Make a TikTok Sound Your Alarm on an iPhone Part 2.