On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophone

The tonehole lattice cutoff frequency is a well-known feature of woodwind instruments. However, most analytic studies of the cutoff have focused on cylindrical instruments due to their relative geometric simplicity. Here, the tonehole lattice cutoff frequency of conical instruments such as the saxop...

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Main Authors: Petersen Erik, Colinot Tom, Kergomard Jean, Guillemain Philippe
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:Acta Acustica
Subjects:
Online Access:https://acta-acustica.edpsciences.org/articles/aacus/full_html/2020/04/aacus200005/aacus200005.html
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author Petersen Erik
Colinot Tom
Kergomard Jean
Guillemain Philippe
author_facet Petersen Erik
Colinot Tom
Kergomard Jean
Guillemain Philippe
author_sort Petersen Erik
collection DOAJ
description The tonehole lattice cutoff frequency is a well-known feature of woodwind instruments. However, most analytic studies of the cutoff have focused on cylindrical instruments due to their relative geometric simplicity. Here, the tonehole lattice cutoff frequency of conical instruments such as the saxophone is studied analytically, using a generalization of the framework developed for cylindrical resonators. First, a definition of local cutoff of a conical tonehole lattice is derived and used to design “acoustically regular” resonators with determinate cutoff frequencies. The study is then expanded to an acoustically irregular lattice: a saxophone resonator, of known input impedance and geometry. Because the lattices of real instruments are acoustically irregular, different methods of analysis are developed. These methods, derived from either acoustic (input impedance) or geometric (tonehole geometry) measurements, are used to determine the tonehole lattice cutoff frequency of conical resonators. Each method provides a slightly different estimation of the tonehole lattice cutoff for each fingering, and the range of cutoffs across the first register is interpreted as the acoustic irregularity of the lattice. It is shown that, in contrast with many other woodwind instruments, the cutoff frequency of a saxophone decreases significantly from the high to low notes of the first register.
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spelling doaj.art-caa705c2ba0c4ac295c84c75ce51248b2023-09-03T04:02:03ZengEDP SciencesActa Acustica2681-46172020-01-01441310.1051/aacus/2020012aacus200005On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophonePetersen Erik0https://orcid.org/0000-0002-4486-5474Colinot Tom1https://orcid.org/0000-0003-3340-2666Kergomard Jean2Guillemain Philippe3LMA, CNRS, UPR 7051, Aix-Marseille Univ, Centrale MarseilleLMA, CNRS, UPR 7051, Aix-Marseille Univ, Centrale MarseilleLMA, CNRS, UPR 7051, Aix-Marseille Univ, Centrale MarseilleLMA, CNRS, UPR 7051, Aix-Marseille Univ, Centrale MarseilleThe tonehole lattice cutoff frequency is a well-known feature of woodwind instruments. However, most analytic studies of the cutoff have focused on cylindrical instruments due to their relative geometric simplicity. Here, the tonehole lattice cutoff frequency of conical instruments such as the saxophone is studied analytically, using a generalization of the framework developed for cylindrical resonators. First, a definition of local cutoff of a conical tonehole lattice is derived and used to design “acoustically regular” resonators with determinate cutoff frequencies. The study is then expanded to an acoustically irregular lattice: a saxophone resonator, of known input impedance and geometry. Because the lattices of real instruments are acoustically irregular, different methods of analysis are developed. These methods, derived from either acoustic (input impedance) or geometric (tonehole geometry) measurements, are used to determine the tonehole lattice cutoff frequency of conical resonators. Each method provides a slightly different estimation of the tonehole lattice cutoff for each fingering, and the range of cutoffs across the first register is interpreted as the acoustic irregularity of the lattice. It is shown that, in contrast with many other woodwind instruments, the cutoff frequency of a saxophone decreases significantly from the high to low notes of the first register.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2020/04/aacus200005/aacus200005.htmlwoodwindstonehole latticesaxophonecutoff frequency
spellingShingle Petersen Erik
Colinot Tom
Kergomard Jean
Guillemain Philippe
On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophone
Acta Acustica
woodwinds
tonehole lattice
saxophone
cutoff frequency
title On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophone
title_full On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophone
title_fullStr On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophone
title_full_unstemmed On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophone
title_short On the tonehole lattice cutoff frequency of conical resonators: applications to the saxophone
title_sort on the tonehole lattice cutoff frequency of conical resonators applications to the saxophone
topic woodwinds
tonehole lattice
saxophone
cutoff frequency
url https://acta-acustica.edpsciences.org/articles/aacus/full_html/2020/04/aacus200005/aacus200005.html
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