Perceptually Based Pitch Scales in Cepstral Techniques for Percussive Timbre Identification
William Brent · 2009
Different types of cepstral analysis are compared in the con-text of a percussion instrument classification external for Pd. For raw cepstrum, mel frequency cepstrum, DCT-based cep-strum, and bark frequency cepstrum, various parameter set-tings are applied to a standardized test. Significant score im-provement can be seen when moving from cepstrum to mel cepstrum, and further improvement is achieved using bark cepstrum. Considering the prevalence of MFCCs as a fea-ture vector for timbre, it is suggested that BFCCs are at least as effective, and more appropriate in light of accompanying psychoacoustic research. 1.