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Non-Linear Phenomena in Contemporary Vocal Music

Neubauer, Jürgen ; Edgerton, Michael LU orcid and Herzel, Hanspeter (2004) In Journal of Voice 18(1). p.1-12
Abstract
Complex and multiphonic voice signals of vocal improvisors are analyzed within the framework of nonlinear dynamics. Evidence is given that nonlinear phenomena are extensively used by performers associated with contemporary music. Narrow-band spectrograms of complex vocalizations are used to visualize the appearance of nonlinear phenomena (spectral bifurcation diagrams). Possible production mechanisms are discussed in connection with previous research, personal performance and pedagogical experience. Examples for period doubling, biphonation and irregular aperiodic phonation in vocal sonorities of contemporary vocal improvisors are given, and glottal whistle production encompassed with biphonation and triphonation is shown. Furthermore,... (More)
Complex and multiphonic voice signals of vocal improvisors are analyzed within the framework of nonlinear dynamics. Evidence is given that nonlinear phenomena are extensively used by performers associated with contemporary music. Narrow-band spectrograms of complex vocalizations are used to visualize the appearance of nonlinear phenomena (spectral bifurcation diagrams). Possible production mechanisms are discussed in connection with previous research, personal performance and pedagogical experience. Examples for period doubling, biphonation and irregular aperiodic phonation in vocal sonorities of contemporary vocal improvisors are given, and glottal whistle production encompassed with biphonation and triphonation is shown. Furthermore, coincidences of harmonics-formant matching associated with abrupt transitions to subharmonics and biphonation in the vocal output are provided. This also shows the recurrent use of nonlinear phenomena by performers. It is argued that mechanisms such as source-tract coupling or vocal fold desynchronization due to asymmetry are used in a reproducible way for musical tasks. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Contemporary vocal music, glottal whistle, artistic reproducibility, multiphonic complex sonorities, nonlinear dynamics
in
Journal of Voice
volume
18
issue
1
pages
12 pages
publisher
Elsevier
ISSN
0892-1997
project
voice research
language
English
LU publication?
yes
id
f9843e30-19fd-44fa-88da-4d276256fcd0
date added to LUP
2019-06-21 19:58:55
date last changed
2022-04-07 09:36:45
@article{f9843e30-19fd-44fa-88da-4d276256fcd0,
  abstract     = {{Complex and multiphonic voice signals of vocal improvisors are analyzed within the framework of nonlinear dynamics. Evidence is given that nonlinear phenomena are extensively used by performers associated with contemporary music. Narrow-band spectrograms of complex vocalizations are used to visualize the appearance of nonlinear phenomena (spectral bifurcation diagrams). Possible production mechanisms are discussed in connection with previous research, personal performance and pedagogical experience. Examples for period doubling, biphonation and irregular aperiodic phonation in vocal sonorities of contemporary vocal improvisors are given, and glottal whistle production encompassed with biphonation and triphonation is shown. Furthermore, coincidences of harmonics-formant matching associated with abrupt transitions to subharmonics and biphonation in the vocal output are provided. This also shows the recurrent use of nonlinear phenomena by performers. It is argued that mechanisms such as source-tract coupling or vocal fold desynchronization due to asymmetry are used in a reproducible way for musical tasks.}},
  author       = {{Neubauer, Jürgen and Edgerton, Michael and Herzel, Hanspeter}},
  issn         = {{0892-1997}},
  keywords     = {{Contemporary vocal music; glottal whistle; artistic reproducibility; multiphonic complex sonorities; nonlinear dynamics}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{1--12}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Voice}},
  title        = {{Non-Linear Phenomena in Contemporary Vocal Music}},
  volume       = {{18}},
  year         = {{2004}},
}