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Instrument Timbres and Pitch Estimation in Polyphonic Music

Language EnglishEnglish
Book Paperback
Book Instrument Timbres and Pitch Estimation in Polyphonic Music Dominik Loeffler
Libristo code: 06996487
Publishers VDM Verlag Dr. Mueller E.K., April 2008
This text connects essential knowledge about music and human auditory perception with signal process... Full description
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This text connects essential knowledge about music and human auditory perception with signal processing algorithms to solve the specific problem of pitch estimation. The designed algorithm obtains an estimate of the magnitude spectrum via STFT and models the harmonic structure of each pitch contained in the magnitude spectrum with Gaussian density mixtures, whose parameters are subsequently estimated via an Expectation-Maximization (EM) algorithm. Heuristics for EM initialization are formulated mathematically. A prototype was implemented in MATLAB, featuring a GUI that provides for visual (spectrogram) and numerical (console) verification of results. The algorithm was tested using an array of data ranging from single to triple superposed instrument recordings. Its advantages and limitations are discussed, and a brief outlook over potential future research is given.

About the book

Full name Instrument Timbres and Pitch Estimation in Polyphonic Music
Author Dominik Loeffler
Language English
Binding Book - Paperback
Date of issue 2008
Number of pages 80
EAN 9783836462976
ISBN 3836462974
Libristo code 06996487
Publishers VDM Verlag Dr. Mueller E.K.
Weight 118
Dimensions 152 x 229 x 4

Categories

The Arts > Music
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