8. The method according to claim 2 , wherein the audio input comprises a sequence of audio frames, and wherein determining whether the audio input includes speech further comprises: extracting from an audio frame of the sequence of audio frames one or more features that characterize the audio frame; and determining whether the audio frame includes speech based on the one or more features that characterize the audio frame and one or more predetermined thresholds, wherein a duration of the audio frame is different from a duration of the audio segment.
2. The method according to claim 1 , wherein the audio input comprises a sequence of audio segments, and wherein determining whether the audio input includes music further comprises: extracting from an audio segment of the sequence of audio segments one or more features that characterize the audio segment; and determining whether the audio segment includes music using an audio classifier and based on the one or more features that characterize the audio segment.