title: Sound design of chimney pipes by optimization of their resonators.
abstract: An optimization method, based on an acoustic waveguide model of chimney and resonator, was developed and tested by laboratory measurements of experimental chimney pipes. The dimensions of the chimney pipes are modified by the optimization algorithm until the specified fundamental frequency is achieved, and a predetermined harmonic partial overlaps with an eigenfrequency of the pipe. The experimental pipes were dimensioned by the optimization method for four different scenarios and were built by an organ builder. The measurements show excellent agreement between the measured sound spectra and calculated input admittances. The developed optimization method can be used for sound design of chimney pipes.
authors.affiliation: Department of Telecommunications, Budapest University of Technology and Economics, Laboratory of Acoustics, Magyar tudósok körútja 2, 1117 Budapest, Hungary.
authors.forename: Péter
authors.initials: P
authors.lastname: Rucz
authors.forename: Thomas
authors.initials: T
authors.lastname: Trommer
authors.forename: Judit
authors.initials: J
authors.lastname: Angster
authors.forename: András
authors.initials: A
authors.lastname: Miklós
authors.forename: Fülöp
authors.initials: F
authors.lastname: Augusztinovicz
mesh_terms: D000162:Acoustics; D000465:Algorithms; D001307:Auditory Perception; D006801:Humans; D007600:Judgment; D008962:Models, Theoretical; D009038:Motion; D009146:Music; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D013018:Sound Spectrography; D014732:Vibration