Title
Improving piano note tracking by HMM smoothing
Abstract
In this paper we improve piano note tracking using a Hidden Markov Model (HMM). We first transcribe piano music based on a non-negative matrix factorisation (NMF) method. For each note four templates are trained to represent the different stages of piano sounds: silence, attack, decay and release. Then a four-state HMM is employed to track notes on the gains of each pitch. We increase the likelihood of staying in silence for low pitches and set a minimum duration to reduce short false-positive notes. For quickly repeated notes, we allow the note state to transition from decay directly back to attack. The experiments tested on 30 piano pieces from the MAPS dataset shows promising results for both frame-wise and note-wise transcription.
Year
Venue
Keywords
2015
European Signal Processing Conference
piano note tracking,Hidden Markov Model
Field
DocType
ISSN
Markov model,Computer science,Spectrogram,Matrix decomposition,Speech recognition,Smoothing,Non-negative matrix factorization,Piano,Hidden Markov model,Silence
Conference
2076-1465
Citations 
PageRank 
References 
2
0.40
14
Authors
3
Name
Order
Citations
PageRank
Tian Cheng1204.89
Simon Dixon21164107.57
Matthias Mauch338126.97