The specific operation is as follows:
Step 1: Install Apple's official app "GarageBand";
Step 2: Store ringtones in GarageBand:
1. Turn on many ringtones. Select the ringtone you want to set, and click Settings-Upload ringtone to GarageBand”- Select Save to File.
2. Click to select the GarageBand File Transfer folder-select Add.
Step 3: Make ringtones from GarageBand and export them to generate ringtones for mobile phones.
1. Open the GarageBand software. If you are an old user, the following interface will appear. Click "Recently Used" in the lower left corner, and then click "+"button in the upper right corner to enter the audio track interface.
If it is the first time for a new user to use it, the following interface will appear. Click the "Use Library Band" button below to enter the audio track interface.
2. Click the "Audio Track" option, then slide left to find the "Recorder" interface, and click to enter the pure music interface.
3. Click the button in the upper left corner to switch to the timeline editing mode interface, click the plus sign in the upper right corner of the interface to enter the music chapter interface, and adjust the chapter length from 8 bars to 20 bars.
4. Click the circular icon in the upper right corner-click "Audio File" again, and you can see that the ringtone audio just imported already exists. Press and hold the imported file, drag it into the Timeline, align the audio file with the leftmost position, and then click the small triangle symbol "My Music" in the upper left corner.
5. Click the "Recently Used" button in the lower left corner-long press the "My Music" just generated, and a series of options will pop up. Click the Share button-click Phone Ringtone, customize the name of the ringtone, click Export, and then click the Standard Phone Ringtone button to convert the ringtone to the built-in ringtone of iOS.
6. Customize the name of the ringtone, and finally click "Export" to convert the ringtone into the built-in ringtone of iOS.