How to change my MP3 format audio to CAF format? It’s because I want to make text message ringtones for Iphone~

Use the MP3 format of the ringtone you want to make as a text message, use itunes to convert it, operation method 1, edit the itunes interface, preferences, import settings, import and use to AIFF, confirm 2, change the ringtone you want to make Right-click the audio in iTunes, click Create AIFF version, find the created AIFF version audio, directly change the suffix name to CAF format, and put it in the iPhone /System/Library/Audio/UISounds folder.

Note: The default address of the created AIFF file system is C:\Documents and Settings\Administrator\My Documents\My Music\iTunes\iTunes Media

Put the prepared CAF format ringtone into the above file Please change the name when clipping, because you need to overwrite the original system ringtone. It is recommended to listen to the original ringtone first, and copy any ringtone name in the text message to the customized ringtone name, and you can use it ~ Do not delete other system ringtones Sound~ It is strongly recommended to listen to the ring tone that comes with the original system before changing it~!