Ringtone maker

Ringtone maker is a best tool to make ringtone, alarm sound, and notification sound, Ringtone maker supports almost file formats: MP3, FLAC, OGG, WAV,AAC(M4A)/MP4, 3GPP/AMR.
Ringtone maker help you create ringtones from your music files. You can cut a music file and get a part which you like.
Ringtone maker is and audio editor with friendly interface, users have three options: trim (remove left, right), remove middle and add a copy.
Features:
+ Cut the music files stored on the phone, made a unique ringtone, alarm sound or notification sound.
+ Preview the ringtone files and assign to contact.
+ Produce a good music file as the default ringtone or warning tone, can be added to a contact as a ringing tone.
+ Find music stored in your phone and various audio files, music editing and clipping.
+ Record a new audio clip to edit.
+ Delete audio (with confirmation alert).
+ Assign a ringtone directly to a contact, you can also re-assign or delete the ringtone from contact.
+ Sort by tracks, albums, artists.
+ Manage contact ringtone.

Explanation for the permissions:
android.permission.READ_CONTACTS
android.permission.WRITE_CONTACTS
After you create the ringtone, there is a choice to assign it to your contact. If you choose this option, the Ringtone Maker need to read your contact data and show them in the list, then you can assign the new ringtone to somebody.
Ringtone Maker will not collect your contact information.
android.permission.WRITE_SETTINGS
android.permission.WRITE_EXTERNAL_STORAGE