Non-Linear Phenomena in Contemporary Vocal Music

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Non-Linear Phenomena in Contemporary Vocal Music. / Neubauer, Jürgen ; Edgerton, Michael; Herzel, Hanspeter .

I: Journal of voice : official journal of the Voice Foundation, Vol. 18, Nr. 1, 2004, s. 1-12.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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TY - JOUR

T1 - Non-Linear Phenomena in Contemporary Vocal Music

AU - Neubauer, Jürgen

AU - Edgerton, Michael

AU - Herzel, Hanspeter

PY - 2004

Y1 - 2004

N2 - 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.

AB - 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.

KW - Contemporary vocal music

KW - glottal whistle

KW - artistic reproducibility

KW - multiphonic complex sonorities

KW - nonlinear dynamics

M3 - Article

VL - 18

SP - 1

EP - 12

JO - Journal of voice : official journal of the Voice Foundation

JF - Journal of voice : official journal of the Voice Foundation

SN - 1557-8658

IS - 1

ER -