Abstract
Glottal source parameter estimation by comparison of measured signals with simulated signals
The Journal of the Acoustical Society of America, Vol.103(5_Supplement), pp.2775-2775
05/01/1998
DOI: 10.1121/1.421419
Abstract
Oral flow, electroglottographic (EGG), and photoglottographic (PGG) signals were simultaneously digitized from a single subject phonating sustained vowels. Analogous simulated signals—oral flow, vocal fold contact area, and glottal area, respectively—were produced by a driven, kinematic glottal source model coupled to a wave-reflection-type vocal tract. The vocal tract area function used in the simulation was estimated from magnetic resonance imaging (MRI) data previously published for the subject. This essentially removed the vocal tract as a confounding factor in the analysis. The measured and simulated signals were compared and an attempt was made to adjust model parameters so that the least-squared differences between the signals were minimized. The model parameters, which included subglottal pressure, vocal fold adduction, vocal fold convergence, and fundamental frequency were observed to be estimates for the glottal configuration and control parameters used by the subject.
Details
- Title: Subtitle
- Glottal source parameter estimation by comparison of measured signals with simulated signals
- Creators
- David G. Druker - University of IowaIngo R. Titze - University of IowaBrad H. Story - Denver Center for the Performing Arts
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.103(5_Supplement), pp.2775-2775
- DOI
- 10.1121/1.421419
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Language
- English
- Date published
- 05/01/1998
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719737002771
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