Sound analysis apparatus and program

Details Sound analysis apparatus and program Sound analysis apparatus and program

2008-02-25

2010-12-28

Enad, Elvin G (Department: 2832)

Music

Instruments

Electrical musical tone generation

C700S094000

Reexamination Certificate

active

07858869

ABSTRACT:
A sound analysis apparatus employs tone models which are associated with various fundamental frequencies and each of which simulates a harmonic structure of a performance sound generated by a musical instrument, then defines a weighted mixture of the tone models to simulate frequency components of the performance sound, further sequentially updates and optimizes weight values of the respective tone models so that a frequency distribution of the weighted mixture of the tone models corresponds to a distribution of the frequency components of the performance sound, and estimates the fundamental frequency of the performance sound based on the optimized weight values.

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Goto, Masataka, “A Real-time Music Scene Description System: System Overview and Extension of F0 Estimation Method”, Information Processing Society of Japan, Special Interest Group on Music and Computer, Study report 2000-MUS-37-2, vol. 2000, No. 94, pp. 9-16, Oct. 16, 2000 (eight pages).
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Goto, M. (Jun. 5, 2000). “A Robust Predominant-FO Estimation Method for Real-Time Detection of Melody and Bass Lines in CD Recordings,”Proceedings 2000 IEEE International Conference, Jun. 5-9, 2000, Piscataway, NJ, IEEE 2:757-760.

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