Michael Döllinger
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Effects of Bubbles During Water Resistance Therapy on the Vibration Characteristics of Vocal Folds During the Phonation of Different Vowels Open
Background: Semi-occluded vocal tract exercises (SOVTE) improve vocal quality and capacity. Water resistance therapy (WRT), a specific form of SOVTE with a tube submerged under water, generates increased and oscillating oral pressure throu…
Influence of Messa di Voce speed on vocal stability of professionally trained singers Open
Introduction Messa di Voce (MdV) is a challenging task for singers, requiring an even modulation of sound pressure level (SPL) on a stable pitch. This study concentrates on the effects of fast or slow task-speed on voice stability paramete…
Editorial: Integrating machine learning with physics-based modeling of physiological systems Open
No abstract available.
Simulating surfing with optimal control: Sensorfusion for biomechanical analysis Open
Currently, there is no established biomechanical model for surfing. Especially, musculoskeletal simulations can provide valuable insights for athletes to enhance performance and prevent injuries using quantitative data such as joint angles…
Immediate Effects of Nasalance Exercises on Patients with Organic Dysphonia Open
Importance Nasalance exercises (also known as resonance exercises) are widely used in voice therapy. Understanding their effects can guide therapeutic approaches and surgical decisions. Objective To analyze the immediate effects of nasalan…
3D reconstruction of vocal fold dynamics with laser high‐speed videoendoscopy in children Open
Objective The objective of this study is to evaluate three‐dimensional vertical motion of the superior surface of the vocal folds in vivo in (a) typically developing children as a function of vocal frequency variations and (b) a child with…
Three-Dimensional Analysis of Vocal Fold Oscillations: Correlating Superior and Medial Surface Dynamics Using Ex Vivo Human Hemilarynges Open
The primary acoustic signal of the voice is generated by the complex oscillation of the vocal folds (VFs), whereby physicians can barely examine the medial VF surface due to its anatomical inaccessibility. In this study, we investigated po…
VOAT: Voice Onset Analysis Tool Open
The onset of phonation can be used as a biomarker for quantitative voice assessment and identification of phonation type, e.g., breathy, modal, and creaky. The onset of phonation can be calculated considering different modalities: acoustic…
Biomechanics of sound production in high-pitched classical singing Open
Voice production of humans and most mammals is governed by the MyoElastic-AeroDynamic (MEAD) principle, where an air stream is modulated by self-sustained vocal fold oscillation to generate audible air pressure fluctuations. An alternative…
Muscular and neuronal control of voice production – forgotten findings, current concepts, and new developments Open
Voice production has been an area of interest in science since ancient times, and although advancing research has improved our understanding of the anatomy and function of the larynx, there is still little general consensus on these two to…
Does forced whisper have an impact on voice parameters? Open
Objectives There has been the assumption that whispering may impact vocal function, leading to the widespread recommendation against its practice after phonosurgery. However, the extent to which whispering affects vocal function and vocal …
Vowel onset measures and their reliability, sensitivity and specificity: A systematic literature review Open
Objective To systematically evaluate the evidence for the reliability, sensitivity and specificity of existing measures of vowel-initial voice onset. Methods A literature search was conducted across electronic databases for published studi…
Analyzing Vocal Fold Frequency Dynamics Using High‐Speed <span>3D</span> Laser Video Endoscopy Open
Objective To examine changes in lateral and vertical vibratory motion along the anterior, middle, and posterior sections of the vocal folds, as a function of vocal frequency variations. Methods Absolute measurements of vocal fold surface d…
Neural network-based estimation of biomechanical vocal fold parameters Open
Vocal fold (VF) vibrations are the primary source of human phonation. High-speed video (HSV) endoscopy enables the computation of descriptive VF parameters for assessment of physiological properties of laryngeal dynamics, i.e., the vibrati…
View article: Machine Learning-assisted immunophenotyping of peripheral blood identifies innate immune cells as best predictor of response to induction chemo-immunotherapy in head and neck squamous cell carcinoma – knowledge obtained from the CheckRad-CD8 trial
Machine Learning-assisted immunophenotyping of peripheral blood identifies innate immune cells as best predictor of response to induction chemo-immunotherapy in head and neck squamous cell carcinoma – knowledge obtained from the CheckRad-CD8 trial Open
Raw cell counts from peripheral blood immune phenotyping across individual patients.
View article: Machine Learning-assisted immunophenotyping of peripheral blood identifies innate immune cells as best predictor of response to induction chemo-immunotherapy in head and neck squamous cell carcinoma – knowledge obtained from the CheckRad-CD8 trial
Machine Learning-assisted immunophenotyping of peripheral blood identifies innate immune cells as best predictor of response to induction chemo-immunotherapy in head and neck squamous cell carcinoma – knowledge obtained from the CheckRad-CD8 trial Open
Raw cell counts from peripheral blood immune phenotyping across individual patients.
Reconstruction of Vocal Fold Medial Surface <span>3D</span> Trajectories: Effects of Neuromuscular Stimulation and Airflow Open
Introduction Analysis of medial surface dynamics of the vocal folds (VF) is critical to understanding voice production and treatment of voice disorders. We analyzed VF medial surface vibratory dynamics, evaluating the effects of airflow an…
Computational fluid dynamics of upper airway aerodynamics for exercise‐induced laryngeal obstruction: A feasibility study Open
Objective Use of computational fluid dynamic (CFD) simulations to measure the changes in upper airway geometry and aerodynamics during (a) an episode of Exercise‐Induced Laryngeal Obstruction (EILO) and (b) speech therapy exercises commonl…
Bilateral Functional Electrical Stimulation for the Treatment of Presbyphonia in a Sheep Model Open
Objectives The aim of the study was to increase muscle volume and improve phonation characteristics of the aged ovine larynx by functional electrical stimulation (FES) using a minimally invasive surgical procedure. Methods Stimulation elec…
Biomechanical sound production in high-pitched classical singing – the „Queen of the Night“ does not whistle Open
Voice production of humans and most mammals is governed by the MyoElastic-AeroDynamic (MEAD) principle, where an air stream is modulated by self-sustaining vocal fold oscillation to generate audible air pressure fluctuations. An alternativ…
Validation and enhancement of a vocal fold medial surface 3D reconstruction approach for in-vivo application Open
In laryngeal research, studying the vertical vocal fold oscillation component is often disregarded. However, vocal fold oscillation by its nature is a three-dimensional process. In the past, we have developed an in-vivo experimental protoc…
Overview on state-of-the-art numerical modeling of the phonation process Open
Numerical modeling of the human phonatory process has become more and more in focus during the last two decades. The increase in computational power and the use of high-performance computation (HPC) yielded more complex models being closer…
GlottisNetV2: Temporal Glottal Midline Detection Using Deep Convolutional Neural Networks Open
High-speed videoendoscopy is a major tool for quantitative laryngology. Glottis segmentation and glottal midline detection are crucial for computing vocal fold-specific, quantitative parameters. However, fully automated solutions show limi…
View article: Synthetic mucus for an <i>ex vivo</i> phonation setup: Creation, application, and effect on excised porcine larynges
Synthetic mucus for an <i>ex vivo</i> phonation setup: Creation, application, and effect on excised porcine larynges Open
Laryngeal mucus hydrates and lubricates the deformable tissue of the vocal folds and acts as a boundary layer with the airflow from the lungs. However, the effects of the mucus' viscoelasticity on phonation remain widely unknown and mucus …
Re-Training of Convolutional Neural Networks for Glottis Segmentation in Endoscopic High-Speed Videos Open
Endoscopic high-speed video (HSV) systems for visualization and assessment of vocal fold dynamics in the larynx are diverse and technically advancing. To consider resulting “concepts shifts” for neural network (NN)-based image processing, …
Re-Training Extension of the Benchmark for Automatic Glottis Segmentation (BAGLS-RT) Open
BAGLS-RT is an extension of the BAGLS dataset (DOI 10.5281/zenodo.3762320) intended for (re-)training glottis segmentation models.
Impulse dispersion of aerosols during playing the recorder and evaluation of safety measures Open
Introduction Group musical activities using wind instruments have been restricted during the CoVID19 pandemic due to suspected higher risk of virus transmission. It was presumed that the aerosols exhaled through the tubes while playing wou…
Re-Training Extension of the Benchmark for Automatic Glottis Segmentation (BAGLS-RT) Open
BAGLS-RT is an extension of the BAGLS dataset (DOI 10.5281/zenodo.3762320) intended for (re-)training glottis segmentation models.