Make sure you have iTunes on your computer first, as well as an MP3 or WAV of the song you need to convert. Import the audio or music file into iTunes on your PC/Mac, and convert the file to AAC. Rename the file extension to .m4r, followed by syncing the file to your iPhone. If you have GarageBand, there's a feature to save audio as a ringtone.
Bonnie wants to get a fun ringtone and download it to her phone. How can she get it from Zedge? Leo says that it's silly to buy ringtones anymore because anyone can make them easily. Once a user has an MP3 of the sound, then he/she can convert it to a ringtone using iTunes. They can then change the m4a file to an m4r just by renaming it and sync it to the phone. That's the concept. Here's how -https://www.media.io/nl/convert/mp3-to-aac.html.