Abstract: A method of visually presenting audio signals includes receiving an audio signal to be presented; generating a predetermined number of discrete frequency components from the audio signal; assigning a graphical object to each of the frequency components, each of the graphical objects being specified by a geometrical shape, a position information and a size information; and all of the graphical objects associated with all of the frequency components are displayed simultaneously on a graphic display. The system includes a microphone for generating audio signals; an audio interface unit for sampling the audio signals and transforming them into digital signals; a processing unit for translating digital signals into a predetermined number of discrete frequency components and for assigning a graphical object to each of the discrete frequency components; a video interface unit for generating a video signal; and a graphic display for displaying a sonogram based on the video signal.