We present a Bayesian analysis method that estimates the harmonic structure of musical instruments in music signals on the basis of psychoacoustic evidence. Since the main objective of multipitch analysis is joint estimation of the fundamental frequencies and their harmonic structures, the performance of harmonic structure estimation significantly affects fundamental frequency estimation accura...

In music, harmony refers to a pleasant combination of sounds. In mathematics, a harmonic function is a sine function obtained by projecting a circular motion on a diameter, and harmonic analysis is the theory of the development of periodic functions into harmonic components, or the theory of similar developments. The occurrence of the same word in musical and mathematical contexts is neither a ...

AIMS This prospective study assesses the (1) feasibility of quantifying ultrasound myocardial perfusion studies based on the densitometric analysis of digital data and the (2) comparison of pulse inversion, second harmonic and harmonic power Doppler modalities with SPECT. METHODS AND RESULTS Twenty-three patients with suspected ischaemic heart disease had i.v. injections of Tc-Sestamibi and O...