Abstract: A system that performs analysis and comparison of audio data files based upon the content of the data files is presented. The analysis of the audio data produces a set of numeric values (a feature vector) that can be used to classify and rank the similarity between individual audio files typically stored in a multimedia database or on the World Wide Web. The analysis also facilitates the description of user-defined classes of audio files, based on an analysis of a set of audio files that are members of a user-defined class. The system can find sounds within a longer sound, allowing an audio recording to be automatically segmented into a series of shorter audio segments.
Type:
Grant
Filed:
July 21, 1997
Date of Patent:
June 29, 1999
Assignee:
Muscle Fish
Inventors:
Thomas L. Blum, Douglas F. Keislar, James A. Wheaton, Erling H. Wold