Voice visualization system for english learning, and method therefor

A speech visualization system comprising:

• a speech signal input unit for receiving speech signals of sentences with English pronunciation;
• a speech information analysis unit for analyzing speech information with frequencies, energy, and time of the speech signals and the text corresponding to the speech signals to divide the speech information into at least one or more segments;
• a speech information classification unit for classifying the segments of the speech information into flow units and each flow unit into at least one or more sub flow units each having at least one or more words;
• a visualization property assignment unit for assigning visualization properties for speech visualization to the analyzed and classified speech information;
• and
• a visualization processing unit for performing visualization processing based on the assigned visualization properties to generate speech visualization data,
• wherein the visualization processing unit comprises:
• a visualization tool database for storing visualization tools;
• a visualization tool selector for providing the selection of the visualization tools stored in the visualization tool database;
• and a visualization unit matching part for matching visualization units representing the visualization properties included in the visualization tool with the assigned visualization properties, and the visualization units have the shapes of polygons whose at least one surface has an acute angle to allow arrangements on a frequency axis to be accurately recognized so that the heights between the visualization units are intuitively recognized.