First, in the computer to download the installation of the "format chemical plant" conversion tool, download the installation directly after the run, and then click on the left side of the "audio" after clicking "m4r" as shown in the following figure.
Second, due to the iphone m4r format ringtone, the length must be controlled within 40s, so we in the conversion of the full MP3 ringtone, the need to intercept clips, preferably a screenshot of their favorite small pieces, such as the music climax part. Here, click "Add File" at the back of the upper intercept section, then open the MP3 music file on your computer, as shown in the image below.
Third, add the songs that need to be converted, and then click "Intercept Clips", as shown in the figure below.
Four, the next will go to the Music capture clip interface, you can listen to hear the need to start the place click "Start Time" after a short period of time, then click the end time. Note that the iphone ringtone needs to be controlled within 40s, so the start time and end time must be adjusted well, after the screenshot good clip time, click "OK", as shown in the figure below.
As above, the author chooses the starting time is: 1 minutes 05 seconds, the end time is 1 minutes 40 seconds, this fragment time is 35s, this can match the iphone ringtone length.
After five, will return to the conversion interface, continue to click on the top of the "OK", as shown in the following image:
Five, the end will see the following initial audio conversion interface, on the right side can see a task, when we click on the top of the open, will automatically convert the MP3 music into m4rg format of the ringtone, and is the fragment we just intercepted, as shown in the figure below.
After you click Start, wait a few seconds for the conversion to complete, as shown in the following figure.
Finally, we can see in the E-drive FFOUTPU folder that you have converted to a ringtone fragment in the format m4r, as shown in the figure below.