Quantification of Static and Dynamic Supraglottic Activity

Stager, Sheila V.; Bielamowicz, Steven; Gupta, Ashmit; Marullo, Shannon; Regnell, Joan R.; Barkmeier, Julie
December 2001
Journal of Speech, Language & Hearing Research;Dec2001, Vol. 44 Issue 6, p1245
Academic Journal
For estimating supraglottic compression in disordered voice production, categorical rating scales of true vocal fold coverage by supraglottic structures are the current standard. Quantification of change in the position of supraglottic structures compared to no supraglottic activity would be a better method for distinguishing between and within voice-disordered groups. This study developed a method for quantifying static supraglottic activity and extent of false vocal fold (FVF) motion during dynamic supraglottic activity. Twelve control participants and 12 individuals with voice disorders (6 with complaints of vocal fatigue and 6 with vocal fold nodules) were enrolled in the study. These individuals participated in a transnasal fiberoptic laryngeal examination in which various speech tasks were recorded. Single-frame images were selected to represent the positions of minimum and maximum supraglottic compression for each speech task. Two individuals rated these single-frame images using a categorical rating scale. Two other individuals measured the anterior-to-posterior (A-P) distance, vocal fold length, and vocal fold area. A-P and FVF compression were derived from these three measures. Reliability was demonstrated between judges for the ratings and between and within judges for the measures. Significant differences in normalized static supraglottic compression measures corresponded to the rating scale categories. Significant differences in normalized dynamic supraglottic compression measures corresponded to the differences in category ratings between minimum and maximum compression. Using the normalized measures, the voice-disordered groups demonstrated significantly greater static A-P compression (t test, p < .03) than did the control participants. These results suggest that static supraglottic activity may be diagnostic of voice disorder. Normalized dynamic FVF compression ratios were not significantly different between groups. This supports a previ...


Related Articles

  • Glottal inverse filtering analysis of human voice production - A review of estimation and parameterization methods of the glottal excitation and their applications. ALKU, PAAVO // Sadhana;Oct2011, Vol. 36 Issue 5, p623 

    Glottal inverse filtering (GIF) refers to methods of estimating the source of voiced speech, the glottal volume velocity waveform. GIF is based on the idea of inversion, in which the effects of the vocal tract and lip radiation are cancelled from the output of the voice production mechanism, the...

  • An Approach on Vowel Recognition Using Glottal Features. Emerich, Simina // Carpathian Journal of Electronic & Computer Engineering;2010, Vol. 3 Issue 1, p17 

    In this paper we investigate the effectiveness of using glottal features for vowel classification. The flow waveforms obtained from speech signals by inverse filtering were parametrized. For each analyzed signal a fixed dimension feature vector is obtained. The models were trained and tested...

  • Experimental validation of quasi-one-dimensional and two-dimensional steady glottal flow models. Cisonni, Julien; Van Hirtum, Annemie; Luo, Xiao; Pelorson, Xavier // Medical & Biological Engineering & Computing;Sep2010, Vol. 48 Issue 9, p903 

    Physical modelling of phonation requires a mechanical description of the vocal fold coupled to a description of the flow within the glottis. In this study, an in-vitro set-up, allowing to reproduce flow conditions comparable to those of human glottal flow is used to systematically verify and...

  • Phonosurgery after endoscopic cordectomies. Villaret, Andrea Bolzoni; Piazza, Cesare; De Zinis, Luca Redaelli; Cattaneo, Augusto; Cocco, Daniela; Peretti, Giorgio // European Archives of Oto-Rhino-Laryngology;Oct2007, Vol. 264 Issue 10, p1179 

    Treatment of glottic cancer by CO2 laser endoscopic cordectomies can be associated with poor vocal outcome when the excision is extended beyond the superficial part of the thyro-arytenoid muscle. Different phonosugical techniques have been described in order to improve postoperative vocal...

  • Phonosurgery after endoscopic cordectomies. Piazza, Cesare; Villaret, Andrea Bolzoni; De Zinis, Luca Redaelli; Cattaneo, Augusto; Cocco, Daniela; Peretti, Giorgio // European Archives of Oto-Rhino-Laryngology;Oct2007, Vol. 264 Issue 10, p1185 

    Major glottic incompetence is often encountered after total (Type IV) and extended (Type V) cordectomies and is responsible for poor vocal outcome. Even though the vast majority of patients do not complain of significant limitations in daily life, a selected number of them eventually require...

  • Studying the Vocal Fold Vibration Using a Nonlinear Finite-Element Model. Tao, Chao; Jiang, Jack. J.; Yu Zhang // AIP Conference Proceedings;2006, Vol. 838 Issue 1, p349 

    The vocal fold vibration and voice production are highly complex nonlinear processes. Nonlinear relationship of glottal pressure to airflow and the nonlinearities of vocal fold collision are two important nonlinear factors of vocal fold vibration. In this paper, we will study the vocal fold...

  • Método de Línea de Transmisión aplicado a la Acústica del Tracto Vocal a través de un Modelo 3D Reconstruido. Brandão, Alexandre S.; Cataldo, Edson; Leta, Fabiana R. // Información Tecnológica;2012, Vol. 23 Issue 2, p167 

    The acoustic propagation in the human vocal tract using the Transmission Line Matrix method (TLM) has been simulated. Tri-dimensional meshes are built from segmented magnetic resonance images. Initially, simple models of one and two tubes were constructed to then simulate the same signal in a...

  • Jitter Estimation Algorithms for Detection of Pathological Voices. Silva, Dárcio G.; Oliveira, Luís C.; Andrea, Mário // EURASIP Journal on Advances in Signal Processing;2009, Special section p1 

    This work is focused on the evaluation of different methods to estimate the amount of jitter present in speech signals. The jitter value is a measure of the irregularity of a quasiperiodic signal and is a good indicator of the presence of pathologies in the larynx such as vocal fold nodules or a...

  • Managing glottal incompetence following Teflon injection. Villagomez, Vicente J.; Rosen, Clark A. // ENT: Ear, Nose & Throat Journal;Jan2001, Vol. 80 Issue 1, p13 

    Discusses a case of left vocal fold paralysis with associated glottal incompetence caused by bilateral vocal fold atrophy seen in an old woman who received a Teflon injection several years earlier. Methods used for diagnosis; Treatment approaches encountered by the patient.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics