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Convention Paper

Generalized Harmonic Analysis and It's Application to Intensive Noise Reduction

Authors: Kanda, Yoshihiro; Katayama, Kenji; Kiriu, Shinya; Muraoka, Teruo

AES Convention 118 · Paper 6432 · May 2005

Abstract

GHA is an inharmonic frequency analysis proposed by N.Wiener and featured with its excellent frequency resolution. However it has not been examined practically until we obtain quite powerful computers because of the difficulty that it requires huge amount of calculations. Recently an elegant algorithm enables to reduce calculations was announced by Dr.Hirata,and the authors have improved the algorithm profitable to practical applications. Consequently, it realized both processing speed and accuracy practical stages. In order to utilize GHA’s advantages of precise frequency detection and separation,the authors have been trying to apply GHA to signal processing in audio engineerings.Scratch noise reduction of damaged SP records will be reported as an example.

Details

Published in
AES Convention 118
AES Convention
118
Paper number
6432
Publication date
May 6, 2005
Session subject
Signal Processing
Affiliation
Musashi Institute of Technology (See document for exact affiliation information.)
Type
Convention Paper