title: Separation of zeros for source signature identification under reverberant path conditions.
abstract: This paper presents an approach to distinguishing the zeros representing a sound source from those representing the transfer function on the basis of Lyon's residue-sign model. In machinery noise diagnostics, the source signature must be separated from observation records under reverberant path conditions. In numerical examples and an experimental piano-string vibration analysis, the modal responses could be synthesized by using clustered line-spectrum modeling. The modeling error represented the source signature subject to the source characteristics being given by a finite impulse response. The modeling error can be interpreted as a remainder function necessary for the zeros representing the source signature.
authors.affiliation: Waseda University, 3-4-1, Okubo, Tokyo, Japan. tomomi-hasegawa@y.ruri.waseda.jp
authors.forename: Tomomi
authors.initials: T
authors.lastname: Hasegawa
authors.forename: Mikio
authors.initials: M
authors.lastname: Tohyama
mesh_terms: D000162:Acoustics; D003198:Computer Simulation; D008962:Models, Theoretical; D009038:Motion; D009146:Music; D009716:Numerical Analysis, Computer-Assisted; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors; D014732:Vibration