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IEEE-INNS-ENNS International Joint Conference on Neural Networks (IJCNN'00)-Volume 6
A New Method for Tracking Modulations in Tonal Music in Audio Data Format
Como, Italy
July 24-July 27
ISBN: 0-7695-0619-4
Hendrik Purwins, CCRMA and Technical University Berlin
Benjamin Blankertz, University of M?nster
Klaus Obermayer, Technical University Berlin
Cq-profiles are 12-dimensional vectors, each component referring to a pitch class. They can be employed to represent keys. Cq-profiles are calculated with the constant Q filter bank [4]. They have the following advantages: (i) they correspond to probe tone ratings. (ii) Calculation is possible in real-time. (iii) Stability is obtained with respect to sound quality. (iv) They are transposable. By using the Cq-profile technique as a simple auditory model in combination with the SOM [11] an arrangement of keys emerges, that resembles results from psychological experiments [13], and from music theory [1]. Cq-profiles are reliably applied to modulation tracking by introducing a special distance measure.
Citation:
Hendrik Purwins, Benjamin Blankertz, Klaus Obermayer, "A New Method for Tracking Modulations in Tonal Music in Audio Data Format," ijcnn, vol. 6, pp.6270, IEEE-INNS-ENNS International Joint Conference on Neural Networks (IJCNN'00)-Volume 6, 2000
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