Apparatus and method for automatic extraction of important events in audio signals
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United States of America Patent
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Jan 21, 2014
Grant Date -
May 12, 2005
app pub date -
Nov 10, 2004
filing date -
Nov 12, 2003
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Abstract
The present invention discloses an apparatus for automatic extraction of important events in audio signals comprising:
- signal input means for supplying audio signals;audio signal fragmenting means for partitioning audio signals supplied by the signal input means into audio fragments of a predetermined length and for allocating a sequence of one or more audio fragments to a respective audio window;feature extracting means for analyzing acoustic characteristics of the audio signals comprised in the audio fragments and for analyzing acoustic characteristics of the audio signals comprised in the audio windows; andimportant event extraction means for extracting important events in audio signals supplied by the audio signal fragmenting means based on predetermined important event classifying rules depending on acoustic characteristics of the audio signals comprised in the audio fragments and on acoustic characteristics of the audio signals comprised in the audio windows, wherein each important event extracted by the important event extraction means comprises a discrete sequence of cohesive audio fragments corresponding to an important event included in the audio signals.
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