Sten Ternström
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View article: ‘Monkey yodels’—frequency jumps in New World monkey vocalizations greatly surpass human vocal register transitions
‘Monkey yodels’—frequency jumps in New World monkey vocalizations greatly surpass human vocal register transitions Open
We investigated the causal basis of abrupt frequency jumps in a unique database of New World monkey vocalizations. We used a combination of acoustic and electroglottographic recordings in vivo , excised larynx investigations of vocal fold …
View article: A WaveNet-based model for predicting the electroglottographic signal from the acoustic voice signal
A WaveNet-based model for predicting the electroglottographic signal from the acoustic voice signal Open
The electroglottographic (EGG) signal offers a non-invasive approach to analyze phonation. It is known, if not obvious, that the onset of vocal fold contacting has a substantial effect on how the vocal folds vibrate and on the quality of t…
View article: Pragmatic De-Noising of Electroglottographic Signals
Pragmatic De-Noising of Electroglottographic Signals Open
In voice analysis, the electroglottographic (EGG) signal has long been recognized as a useful complement to the acoustic signal, but only when the vocal folds are actually contacting, such that this signal has an appreciable amplitude. How…
View article: Pragmatic De-noising of Electroglottographic Signals
Pragmatic De-noising of Electroglottographic Signals Open
In voice analysis, the electroglottographic (EGG) signal has long been recognized as a useful complement to the acoustic signal, if only when the vocal folds are actually contacting, such that this signal has an appreciable amplitude. Howe…
View article: Update 3.1 to FonaDyn — a system for real-time analysis of the electroglottogram, over the voice range
Update 3.1 to FonaDyn — a system for real-time analysis of the electroglottogram, over the voice range Open
The human voice is notoriously variable, and conventional measurement paradigms are weak in terms of providing evidence for effects of treatment and/or training of voices. New methods are needed that can take into account the variability o…
View article: Computational Analysis and Simulation of the Human Voice (Dagstuhl Seminar 24242)
Computational Analysis and Simulation of the Human Voice (Dagstuhl Seminar 24242) Open
This report documents the program and the outcomes of Dagstuhl Seminar 24242 "Computational Analysis and Simulation of the Human Voice", which was held from the 9th to the 14th of June, 2024. The seminar addressed key issues for a better u…
View article: Body motion of choral singers
Body motion of choral singers Open
Recent investigations on music performances have shown the relevance of singers' body motion for pedagogical as well as performance purposes. However, little is known about how the perception of voice-matching or task complexity affects ch…
View article: Special Issue on Current Trends and Future Directions in Voice Acoustics Measurement
Special Issue on Current Trends and Future Directions in Voice Acoustics Measurement Open
The human voice production mechanism implements a superbly rich communication channel that at once tells us what, who, how, and much more [...]
View article: Mapping Phonation Types by Clustering of Multiple Metrics
Mapping Phonation Types by Clustering of Multiple Metrics Open
For voice analysis, much work has been undertaken with a multitude of acoustic and electroglottographic metrics. However, few of these have proven to be robustly correlated with physical and physiological phenomena. In particular, all metr…
View article: Voice Maps as a Tool for Understanding and Dealing with Variability in the Voice
Voice Maps as a Tool for Understanding and Dealing with Variability in the Voice Open
Individual acoustic and other physical metrics of vocal status have long struggled to prove their worth as clinical evidence. While combinations of metrics or “features” are now being intensely explored using data analytics methods, there …
View article: Update 2.0 to FonaDyn — A system for real-time analysis of the electroglottogram, over the voice range
Update 2.0 to FonaDyn — A system for real-time analysis of the electroglottogram, over the voice range Open
Update 2.0 to FonaDyn - A system for real-time analysis of the electroglottogram, over the voice range
View article: Normalized time-domain parameters for electroglottographic waveforms
Normalized time-domain parameters for electroglottographic waveforms Open
The electroglottographic waveform is of interest for characterizing phonation non-invasively. Existing parameterizations tend to give disparate results because they rely on somewhat arbitrary thresholds and/or contacting events. It is show…
View article: Accounting for Variability over the Voice Range
Accounting for Variability over the Voice Range Open
Researchers from the natural sciences interested in the performing arts often seek quantitative findings with explanatory power and practical relevance to performers and educators. However, the com ...
View article: Effects of the Lung Volume on the Electroglottographic Waveform in Trained Female Singers
Effects of the Lung Volume on the Electroglottographic Waveform in Trained Female Singers Open
Most subjects exhibited small, reproducible effects of the relative lung volume on the EGG waveform. Some hypothesized influences of tracheal pull were seen, mostly at the lowest SPLs. The effects were however highly variable, both across …
View article: Data for: Effects of the lung volume on the electroglottographic waveform in some trained female singers
Data for: Effects of the lung volume on the electroglottographic waveform in some trained female singers Open
Supplementary figure files A-D for the article Ternström S, D'Amario S, Selamtzis A. Effects of the lung volume on the electroglottographic waveform in some trained female singers. Submitted to Journal of Voice.
View article: Prediction of three articulatory categories in vocal sound imitations using models for auditory receptive fields
Prediction of three articulatory categories in vocal sound imitations using models for auditory receptive fields Open
Vocal sound imitations provide a new challenge for understanding the coupling between articulatory mechanisms and the resulting audio. In this study, the classification of three articulatory categories, phonation, supraglottal myoelastic v…
View article: Long-term effects of Lee Silverman Voice Treatment on daily voice use in Parkinson’s disease as measured with a portable voice accumulator
Long-term effects of Lee Silverman Voice Treatment on daily voice use in Parkinson’s disease as measured with a portable voice accumulator Open
This study examines the effects of an intensive voice treatment focusing on increasing voice intensity, LSVT LOUD® Lee Silverman Voice Treatment, on voice use in daily life in a participant with Parkinson's disease, using a portable voice …
View article: FonaDyn — A system for real-time analysis of the electroglottogram, over the voice range
FonaDyn — A system for real-time analysis of the electroglottogram, over the voice range Open
From soft to loud and low to high, the mechanisms of human voice have many degrees of freedom, making it difficult to assess phonation from the acoustic signal alone. FonaDyn is a research tool that combines acoustics with electroglottogra…
View article: A Unified Numerical Simulation of Vowel Production That Comprises Phonation and the Emitted Sound
A Unified Numerical Simulation of Vowel Production That Comprises Phonation and the Emitted Sound Open
A unified approach for the numerical simulation of vowels is presented, which accounts for the self-oscillations of the vocal folds including contact, the generation of acoustic waves and their propagation through the vocal tract, and the …
View article: Some current challenges in unified numerical simulations of voice production : from biomechanics to the emitted sound
Some current challenges in unified numerical simulations of voice production : from biomechanics to the emitted sound Open
Voice production all the way from muscle activation to sound - are we there yet? Three-dimensional (3D) numerical simulations of the entire process of voice generation appear to be very challenging. Muscle activations position the articula…