Disclosed herein are singing evaluation system and evaluation method for online, offline, PSTN and mobile network with Karaoke background music function and display function. The si nging evaluation system of the present invention comprises: lyric data for song, background music data, data base of one of pitch tempo data to display pitch and tempo of the song's each a bar or note; output of the background music data via speaker,and audio data processing block that converts user's performance clip song data to a format comparable to the pitch tempo data; video data processing block which compares and displays the audio data processing block processed song data and the pitch tempo data; and, grading block which evaluates the song data based on how much song data and pitch tempo data matches. Accordingly, not only the invention allows evaluation of user's singing capabilities based on standardized basis, but also allows repeatable practice by each song or by each a bar of a song. User can enhance one's singing capabilities using the invention. And even when user is not very familiar with melody and tempo, user can easily sing along. Various game method is applicable to boost fun factor as well.
SYSTEM AND METHOD FOR GRADING SINGING DATA