TY - JOUR
T1 - Incorporating scale information with cepstral features: experiments on musical instrument recognition
AU - Morvidone, Marcela
AU - Sturm, Bob L.
AU - Daudet, Laurent
N1 - Part of this work was carried out while Dr. Sturm was a postdoctoral fellow at Université Pierre et Marie Curie, Paris 7; the submission was corrected and finalized while Dr. Sturm was at ADMT, AAUK.
PY - 2010
Y1 - 2010
N2 - We present two sets of novel features that combine multiscale representations of signals with the compact timbral description of Mel-frequency cepstral coefficients (MFCCs). We define one set of features, OverCs, from overcomplete transforms at multiple scales. We define the second set of features, SparCs, from a signal model found by sparse approximation. We compare the descriptiveness of our features against that of MFCCs by performing two simple tasks: pairwise musical instrument discrimination, and musical instrument classification. Our tests show that both OverCs and SparCs improve the characterization of the global timbre and local stationarity of an audio signal than do mean MFCCs with respect to these tasks.
AB - We present two sets of novel features that combine multiscale representations of signals with the compact timbral description of Mel-frequency cepstral coefficients (MFCCs). We define one set of features, OverCs, from overcomplete transforms at multiple scales. We define the second set of features, SparCs, from a signal model found by sparse approximation. We compare the descriptiveness of our features against that of MFCCs by performing two simple tasks: pairwise musical instrument discrimination, and musical instrument classification. Our tests show that both OverCs and SparCs improve the characterization of the global timbre and local stationarity of an audio signal than do mean MFCCs with respect to these tasks.
U2 - doi:10.1016/j.patrec.2009.12.035
DO - doi:10.1016/j.patrec.2009.12.035
M3 - Journal article
SN - 0167-8655
VL - 31
SP - 1489
EP - 1497
JO - Pattern Recognition Letters
JF - Pattern Recognition Letters
ER -