Sound and beat image display method and equipment


Application Number: 00108270
Application Date: 2000.05.02
Publication Number: 1321964
Publication Date: 2001.11.14
Priority Information:
International: G09G5/00;G09G5/36
Applicant(s) Name: Mo Shaoxiang
Address:
Inventor(s) Name: Mo Shaoxiang
Patent Agency Code: 72001
Patent Agent: wang zhongzhong
Abstract The present invention relates to a method for displaying sound essence by using graph and its equipment capable of displaying waveform of sound, main frequency characteristics, beat and change produced with time. Said invention adopts colour, form position and movement, and can display several graphs simultaneously in the mode of concentric circles or placing them at adjacent position, can overlap or no overlap them to represent essence of sound in the different field. The characteristic frequency of sound can be calculated by using rapid Fourier transform. Said invention contains an algorith based on "zero point space" and with low calculating quantity and matches it with autocorrelation function to emphasize main frequency characteristics. It also contains a helical coordinate, and can provide higher accuracy to easily identify the characteristics of rhythm, chord and tone change, etc.