

To change the ACC file’s extension so that iTunes recognizes it as a ringtone:.Right-click on the one that says, “MPEG audio file” (MP3) to remove it from your library if you wish.To differentiate the two, in the library right-click on the headings and select “Kind” to enable the column.

Now you’ll have two copies of the same audio file in your library the original and the AAC version just created.

