HTC One User Manual page 149

If you want HTC One to automatically check and update your music
collection, tap
Select Album art and Artist photos.
Setting a song as a ringtone
Pick a song from your Music library and set it as your ringtone or as
ringtone for a favorite contact.
1. Open the Music app.
2. Play the song that you want to set as a ringtone.
3. Tap > Set as ringtone.
4. Tap Phone ringtone or Contact ringtone. If you select Contact
ringtone, choose the contacts you want to associate the ringtone
with.
Trimming an MP3 ringtone
Use the Music app's ringtone trimmer if you want to set only a part of the
song as ringtone.
1. When you find the song that you want, tap
Trim the ringtone.
2. Drag the trim sliders
begin and end.
For a more precise trimming, tap the left or right arrow buttons.
Time markers indicate where you are on the song.
3. When you're done trimming, tap Set as.
on the Music app's main screen, and then tap Settings.
to the part where you want the ringtone to
Entertainment
> Set as ringtone >
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