Event based transcription system for polyphonic piano music

Authors:
Giovanni Costantini;Renzo Perfetti;Massimiliano Todisco
Affiliations:
Department of Electronic Engineering, University of Rome 'Tor Vergata', Italy;Department of Electronic and Information Engineering, University of Perugia, Italy;Department of Electronic Engineering, University of Rome 'Tor Vergata', Italy
Venue:
Signal Processing
Year:
2009

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Abstract

Music transcription consists in transforming the musical content of audio data into a symbolic representation. The objective of this study is to investigate a transcription system for polyphonic piano, triggered by events corresponding to the played notes. The proposed method focuses on note events and their main characteristics: the attack instant, the pitch and the final instant. Onset detection exploits a binary time-frequency representation of the audio signal. Note classification and offset detection are based on constant Q transform (CQT) and support vector machines (SVMs). We present a collection of experiments using synthesized MIDI files and piano recordings, and compare the results with existing approaches.