applied sciences

Meeting Report The 13th International Conference on Advances in Quantitative Laryngology, Voice and Research (June 2–4, 2019, Montreal, Quebec, Canada)

Luc Mongeau

Department of Mechanical Engineering, McGill University, Montreal, QC H3A 0G4, Canada; [email protected]

 Received: 28 May 2019; Accepted: 29 May 2019; Published: 30 June 2019 

Abstract: The 13th International Conference on Advances in Quantitative Laryngology, Voice and Speech Research (AQL 2019) will be held in Montreal, Canada, 3–4 June 2019. Pre-conference workshops will be held on 2 June 2019. The conference and workshops provide a unique opportunity for partnership and collaboration in the advancement of quantitative methods for the measurement and modelling of voice and speech. The AQL accomplishes this mandate by facilitating an interprofessional scientific conference and training intended for an international community of otolaryngologists, speech–language pathologists and voice scientists. With a continued drive toward advancements in translational and clinical voice science, the AQL has rapidly expanded over the past 20 years, from a forum of 15 European member laboratories to a globally recognized symposium, connecting over 100 delegates from across the world.

Contents

1 Pre-Conference 4 1.1 Hybrid Aeroacoustic Approach for the Efficient Numerical Simulation of Human Phonation...... 4 1.2 simVoice—Numerical Computation of the Source...... 6 1.3 Aeroacoustic and Vibroacoustic Mechanisms during Phonation...... 7 1.4 A Machine-Learning Based Reduced-Order Modeling of Glottal Flow...... 8 1.5 Updated Rules for Constructing a Triangular Body-Cover Model of the Vocal Folds from Intrinsic Laryngeal Muscle Activation...... 9 1.6 Synthetic Vocal Fold Model Closed Quotient Optimization...... 10 1.7 Contact Pressure and Length as a Function of Posterior Glottal Area: Synthetic Vocal Fold Investigations...... 12

2 Session 1 13 2.1 Vocal-Fold 3D Micro-Architecture and Micro-Mechanics: A Multimodal Imaging Study 13 2.2 Influence of Recording Perspective in Laryngoscopy on Perceived Asymmetry..... 14 2.3 Extracting Reduced-Order Model Parameters from High-Speed Video of Silicone Vocal Folds Using a Gradient-Based Approach...... 16 2.4 Segmenter’s Influence on Objective Glottal Area Waveform Measures from High-Speed Laryngoscopy...... 17 2.5 Vocal Fold Collision Pressure Amplitude and Timing in an Excised Hemilarynx Setup with Dual High-Speed Videoendoscopy...... 18 2.6 Recent Advancements in Acoustic Analysis for Assessing Laryngeal Function..... 20

Appl. Sci. 2019, 9, 2665; doi:10.3390/app9132665 www.mdpi.com/journal/applsci Appl. Sci. 2019, 9, 2665 2 of 114

2.7 Optimization of Relative Fundamental Frequency Estimation Algorithms: Accounting for Sample Characteristics and Fundamental Frequency Estimation Method...... 21 2.8 Acoustic Phonatory Tremor Index: Objective Quantification of Perceived Vocal Tremor Severity...... 22 2.9 Accelerometer-Based Prediction of Subglottal Pressure in Healthy Speakers Producing Non-Modal Phonation...... 23 2.10 Classification of Vocal Gestures Extracted from Quasi-Daily Sentences to Detect Vocal Fatigue...... 25 2.11 Uncertainty of Ambulatory Airflow Estimates and Its Effect on the Classification of Phonotraumatic Vocal Hyperfunction...... 26 2.12 How Is Vocal Loudness Affected by Spectral Slope...... 27

3 Poster Session 1 28 3.1 Riedel’s Thyroiditis Cordal Paralysis: A Single Case Study...... 28 3.2 Influence of Voice Focus Adjustments on Oral-Nasal Balance in Speech and Singing.. 29 3.3 Immunological Profiling of Vocal Fold Hydrogel Scaffolds...... 30 3.4 Chemical Receptors of the : A Comparison of Human and Mouse...... 32 3.5 An Investigation of Vocal Fatigue Using a Dose-Based Vocal Loading Task...... 33 3.6 Passive