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A technique for detecting note onsets using FIR comb filters which have different filter delays is presented. The proposed onset detector focuses on the inharmonic characteristics of the onset component and the energy increases of the signal. Both properties are combined by utilising FIR comb filters on a frame by frame basis in order to obtain an onset detection functions, which is suitable for detecting slow onsets. The proposed approach improves upon existing methods in terms of the percentage of correct detections in signal processing.
Gainza, M., Lawlor, B., Coyle, E.: Onset detection using comb filters. IEEE Workshop on applications of signal processing to audio and acoustics, October 16-19, 2005, New Palz, New York.