Change search
ReferencesLink to record
Permanent link

Direct link
Physical modeling of buzzing artificial lips: The effect of acoustical feedback
Department of Mechanical Engineering, Eindhoven University of Technology.ORCID iD: 0000-0002-3609-3005
Show others and affiliations
2006 (English)In: Acta Acoustica united with Acustica, ISSN 1610-1928, Vol. 92, no 6, 1047-1059 p.Article in journal (Refereed) Published
Abstract [en]

The influence of the up- and downstream acoustics on the buzzing behavior of artificial lips has been studied. In the presence of a long downstream pipe, the oscillation frequency is well predicted by means of a model assuming a single mechanical degree of freedom for the lips. A minimum of the threshold pressure for buzzing is observed when the lips are just closed at rest. The magnitude of this threshold pressure is underestimated by the model. In order to fit experiments the quality factor of the lip resonance has to be reduced by a factor two compared to the measured quality factor. In the absence of downstream pipe the threshold pressure increases by a factor three and a jump in oscillation frequency from one mechanical lip-mode to another one is observed as the lung pressure is increased. An attempt to describe this behavior by means of a 2-mass-model fails.

Place, publisher, year, edition, pages
2006. Vol. 92, no 6, 1047-1059 p.
Keyword [en]
Degrees of freedom (mechanics), Feedback, Mathematical models, Oscillations, Resonance, Oscillation frequency, Quality factor, Acoustics
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:kth:diva-66763ISI: 000244415500023OAI: diva2:484726
QC 20120219Available from: 2012-01-27 Created: 2012-01-27 Last updated: 2012-02-19Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Lopez Arteaga, Ines
In the same journal
Acta Acoustica united with Acustica
Fluid Mechanics and Acoustics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link