Patent ID: 8571858

Claim:
A method for classifying different segments of an audio signal, the audio signal comprising speech and music segments, the method comprising: short-term classifying, by a short-term classifier, the audio signal on the basis of at least one short-term feature extracted from the audio signal to determine whether a current segment of the audio signal is a speech segment or a music segment, and delivering, at an output of the short-term classifier, a short-term classification result indicating that the current segment of the audio signal is a speech segment or a music segment; long-term classifying, by a long-term classifier, the audio signal on the basis of at least one short-term feature and at least one long-term feature extracted from the audio signal to determine whether a current segment of the audio signal is a speech segment or a music segment, and delivering, at an output of the long-term classifier, a long-term classification result indicating that the current segment of the audio signal is a speech segment or a music segment; and applying the short-term classification result and the long-term classification result to a decision circuit coupled to the output of the short-term classifier and to the output of the long-term classifier, the decision circuit combining the short-term classification result and the long-term classification result to provide an output signal indicating whether the current segment of the audio signal is a speech segment or a music segment.