MUSIC DATABASE CREATING DEVICE, CREATING METHOD, AND PROGRAM RECORDING MEDIUM THEREOF

摘要

PROBLEM TO BE SOLVED: To add an identifier to music information in real time with a relatively simple processing. SOLUTION: A spectrogram is calculated by analyzing frequency of input music information 205. Edge intensity (edi) of the spectrogram in the time axis direction is calculated 207. The edge intensity (edi) is summed in the frequency axis direction to calculate an edge intensity sum ED 209. Data indicating the ED or an increase, a decrease or a continuation of the ED are added to a header of the music information as an identifier to store in a database.