Vocal Fold Vibration Associated With Inspiratory Phonation-An Acoustic and Electroglottographic Study.

J Voice

Department of Duquesne-China Health Institute, John G. Rangos Sr. School of Health Sciences, Duquesne University, Pittsburgh, PA; Speech Science Laboratory, Faculty of Education, The University of Hong Kong, Hong Kong SAR, China.

Published: December 2024

AI Article Synopsis

  • The study focused on inspiratory phonation (IP) and its differences from expiratory phonation (EP) in terms of voice quality and glottal vibratory characteristics.
  • Acoustic and electroglottographic analyses were conducted on the vowel /i/ produced by 43 vocally healthy adults to assess voice metrics like fundamental frequency and jitter.
  • Results showed distinct changes in glottal vibration during IP, highlighting its clinical significance and the need for more research to understand its role in diagnosing and treating voice disorders.

Article Abstract

Objective: Different from normal or expiratory phonation (EP), inspiratory phonation (IP) involves the use of an ingressive airflow and it is frequently used in clinical voice assessment and treatment. The present study examined the voice quality and glottal vibratory characteristics associated with IP through acoustic (AC) and electroglottographic (EGG) analyses.

Methods: The AC and EGG signals of the vowel /i/ produced by 43 young, vocally healthy adults using IP and EP were simultaneously recorded and analyzed using Praat. Contact-related measures derived from EGG signals included contact quotient (CQ), CQ perturbation (CQP), contact index (CI), relative contact rise time (RT), amplitude of contact phase (Amp), slope of contacting phase (Slope), and slope of decontacting phase (Slope). Additionally, fundamental frequency (F0), percent jitter (%Jitter), percent shimmer (%Shimmer), and harmonic-to-noise ratio (HNR) were extracted from both EGG and AC signals.

Results: CQP, CI, and RT increased and Amp and Slope decreased when using IP, but no significant differences in CQ and Slope between EP and IP. F0, %Jitter, and %Shimmer increased during IP, while HNR decreased. Similarly, F0, %Jitter, and %Shimmer increased during IP, with no significant difference between IP and EP for HNR.

Conclusions: Marked differences in glottal vibration were identified for IP when compared with EP, with the latter having been studied more extensively. Given the clinical value of IP, further characterization is warranted to elucidate the specific role this maneuver may play in the differential diagnosis and treatment of laryngeal pathology.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jvoice.2024.11.027DOI Listing

Publication Analysis

Top Keywords

acoustic electroglottographic
8
egg signals
8
amp slope
8
phase slope
8
%jitter %shimmer
8
%shimmer increased
8
slope
6
vocal fold
4
fold vibration
4
vibration associated
4

Similar Publications

Vocal Fold Vibration Associated With Inspiratory Phonation-An Acoustic and Electroglottographic Study.

J Voice

December 2024

Department of Duquesne-China Health Institute, John G. Rangos Sr. School of Health Sciences, Duquesne University, Pittsburgh, PA; Speech Science Laboratory, Faculty of Education, The University of Hong Kong, Hong Kong SAR, China.

Article Synopsis
  • The study focused on inspiratory phonation (IP) and its differences from expiratory phonation (EP) in terms of voice quality and glottal vibratory characteristics.
  • Acoustic and electroglottographic analyses were conducted on the vowel /i/ produced by 43 vocally healthy adults to assess voice metrics like fundamental frequency and jitter.
  • Results showed distinct changes in glottal vibration during IP, highlighting its clinical significance and the need for more research to understand its role in diagnosing and treating voice disorders.
View Article and Find Full Text PDF

Extrinsic Laryngeal Muscle Activity and Vocal Economy in Professionally Trained Voices During Vocal Vibrato.

J Voice

August 2024

Department of Audiology and Speech Language Pathology, Daegu Catholic University, Kyeongsan, Republic of Korea. Electronic address:

Purpose: The purpose of the present study was to determine the extrinsic laryngeal muscle activity and vocal economy during two different singing conditions (straight-tone- vs vibrato singing) over a physiologically relevant singing range.

Methods: Thirty professional singers or voice coaches participated in the study. The participants sang a sustained /a:/ vowel for approximately 5seconds, once in straight-tone singing conditions and once more in vibrato.

View Article and Find Full Text PDF
Article Synopsis
  • - This study explored how Mandarin speakers' voice characteristics change when they are being deceptive versus truthful, focusing on both general trends and gender differences.
  • - A group of 36 participants provided both truthful and deceptive answers during interviews, and their vocal signals were recorded and analyzed, revealing key acoustic and electroglottographic features associated with deception.
  • - Findings indicated that deception in Mandarin involves specific changes in vocal features such as pitch and intensity, with distinct differences observed between male and female speakers, suggesting emotional responses and phonation styles play a role in how deception is expressed.
View Article and Find Full Text PDF

Pragmatic De-Noising of Electroglottographic Signals.

Bioengineering (Basel)

May 2024

Division of Speech, Music and Hearing, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.

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. However, phonation can also occur without the vocal folds contacting, as in breathy voice, in which case the EGG amplitude is low, but not zero. It is of great interest to identify the transition from non-contacting to contacting, because this will substantially change the nature of the vocal fold oscillations; however, that transition is not in itself audible.

View Article and Find Full Text PDF

Effects of Speech Characteristics on Electroglottographic and Instrumental Acoustic Voice Analysis Metrics in Women With Structural Dysphonia Before and After Treatment.

J Speech Lang Hear Res

June 2024

Division of Phoniatrics and Speech Pathology, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Switzerland.

Purpose: Literature suggests a dependency of the acoustic metrics, smoothed cepstral peak prominence (CPPS) and harmonics-to-noise ratio (HNR), on human voice loudness and fundamental frequency (0). Even though this has been explained with different oscillatory patterns of the vocal folds, so far, it has not been specifically investigated. In the present work, the influence of three elicitation levels, calibrated sound pressure level (SPL), 0 and vowel on the electroglottographic (EGG) and time-differentiated EGG (dEGG) metrics hybrid open quotient (OQ), dEGG OQ and peak dEGG, as well as on the acoustic metrics CPPS and HNR, was examined, and their suitability for voice assessment was evaluated.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!