Method and apparatus for classifying sound signals
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United States of America Patent
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Issued Date -
Oct 13, 2005
app pub date -
Mar 30, 2005
filing date -
Jul 8, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention concerns a method for assigning at least one sound class to a sound signal, characterized in that it comprises the following steps: dividing the sound signal into temporal segments having a specific duration, extracting the frequency parameters of the sound signal in each of the temporal segments, by determining a series of values of the frequency spectrum in a frequency range between a minimum frequency and a maximum frequency, assembling the parameters in time windows having a specific duration greater than the duration of the temporal segments, extracting from each time window, characteristic components, and on the basis of the extracted characteristic components and using a classifier, identifying the sound class of the time windows of the sound signal.
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