Karaoke Music App

I want to create Karaoke type app. My app will take music from itunes and save it in sqlite database from application's document folder.Then I have to save music title, album name and artist name. I want to save lyrics with time stamps.so that I could display lyrics when music starts playing and highlight each letter of lyrics. I am stuck here. How can I create dynamic tim开发者_C百科e stamps in data base. because each music file may be of different duration.I want to use code data. Please help.

As there is no way to predict in software where a word appears in a song, or what the structure of the song is, you will need to make a series of timestamps for each word manually, timing it yourself (or the user will)