Piano Legato-Pedal Onset Detection Based on a Sympathetic Resonance Measure
- Resource Type
- Conference
- Authors
- Liang, Beici; Fazekas, Gyorgy; Sandler, Mark
- Source
- 2018 26th European Signal Processing Conference (EUSIPCO) Signal Processing Conference (EUSIPCO), 2018 26th European. :2484-2488 Sep, 2018
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Signal Processing and Analysis
Feature extraction
Resonant frequency
Music
Frequency estimation
Spectrogram
Europe
onset detection
sympathetic resonance
piano acoustics
piano pedalling techniques
- Language
- ISSN
- 2076-1465
In this paper, the problem of legato pedalling technique detection in polyphonic piano music is addressed. We propose a novel detection method exploiting the effect of sympathetic resonance which can be enhanced by a legato-pedal onset. To measure the effect, a specific piano transcription was performed using the templates of pre-recorded isolated notes, from which partial frequencies were estimated. This promotes the acquisition of residual components associated to the weak co-excitation of damped notes due to the legato pedalling technique. Features that represent the sympathetic resonance measure were extracted from residuals. We finally used a logistic regression classifier to determine the existence of legato-pedal onsets.