Aerodynamic and Myoelastic Contributions to Tracheoesophageal Voice Production

1987 ◽  
Vol 30 (3) ◽  
pp. 387-395 ◽  
Author(s):  
Jerald B. Moon ◽  
Bernd Weinberg
Keyword(s):  
Fundamental Frequency ◽  
Acoustic Properties ◽  
Frequency Change ◽  
Voice Production ◽  
Normal Voice ◽  
Existing Data

Five laryngectomized, tracheoesophageal (TE) speakers completed a series of phonatory tasks developed to assess (a) aerodynamic and acoustic properties of TE voice and (b) aerodynamic and myoelastic contributions to the mediation of fundamental frequency change. These TE speakers' voices were characterized by increased trans-source airflow rates, comparable source driving pressures, and decreased airway resistances in comparison with standard esophageal speakers. TE speakers were capable of adjusting their voicing sources on a myoelastic basis to influence F o change. This result, coupled with findings that confirm aerodynamic contributions to TE phonation, are intepreted to suggest that TE voice production should be regarded as an aerodynamic-myeolastic event. Findings are integrated with existing data to highlight fundamental differences among TE, esophageal, and normal voice production.

Selected Acoustic Characteristics of Pathologic and Normal Speakers

1980 ◽  
Vol 23 (2) ◽  
pp. 361-369 ◽  
Author(s):  
Thomas Murry ◽  
E. Thomas Doherty
Keyword(s):  
Fundamental Frequency ◽  
Laryngeal Cancer ◽  
Acoustic Characteristics ◽  
Voice Production ◽  
Normal Voice ◽  
Speaking Fundamental Frequency ◽  
Male Subjects

The purpose of this study was to determine if measures of speaking fundamental frequency and its perturbation could be useful in differentiating talkers with no known vocal pathology and talkers with cancer of the larynx. Ten male subjects, five with a diagnosed malignancy of the larynx and five with normal voice, produced speech samples from which five voice production measures were obtained: the average speaking fundamental frequency (SFF), SFF variability during the reading of a sentence, the f 0 of a sustained vowel and a percent and magnitude jitter value. The perturbation factors, both directional and magnitudinal, during sustained vowels were found to be significant in discriminating normal talkers from those with laryngeal cancer. The speaking funda- mental frequency and its variability during the reading of a sentence improved the dis- criminant function.

Acoustic Properties of Pathologic Reiterative Utterances

1982 ◽  
Vol 25 (1) ◽  
pp. 95-99 ◽  
Author(s):  
R. D. Kent ◽  
Leonard L. Lapointe
Keyword(s):  
Fundamental Frequency ◽  
Acoustic Properties ◽  
Frequency Change ◽  
Acoustic Data ◽  
Acoustic Analyses ◽  
High Degree ◽  
Degree Of Similarity

Acoustic analyses of the reiterative utterances of one subject demonstrate a high degree of similarity among the members of a repetition train. The acoustic data did not confirm for this patient the published description of palilalia as a reiteration of utterances in a context of increasing rate and decreasing loudness. In fact, the final utterance in a repetition train often had either a longer duration, greater intensity, or more pronounced fundamental frequency change (or any combination of these) than its predecessors. It is suggested that there may be more than one type of pathological reiterative utterance.

Aerodynamic and Electroglottographic Measures of Normal Voice Production

1994 ◽  
Vol 37 (1) ◽  
pp. 38-45 ◽  
Author(s):  
Maureen B. Higgins ◽  
Ronald Netsell ◽  
Laura Schulte
Keyword(s):  
Fundamental Frequency ◽  
Air Flow ◽  
Air Pressure ◽  
Sentence Production ◽  
Type I ◽  
Intrasubject Variability ◽  
Voice Production ◽  
Normal Limits ◽  
Syllable Repetition ◽  
Normal Voice

The purpose of this investigation was to quantify the normal intrasubject performance variability of four measures of phonatory function within and across sessions. Two different speaking tasks, syllable series and sentence production, were used to determine if more natural speaking tasks resulted in greater intrasubject variability. Vowel type ([i] versus [a]) also was varied. Estimated subglottal air pressure, mean phonatory air flow, abduction quotient, and fundamental frequency were derived from aerodynamic and electroglottographic signals obtained from 11 normally speaking men and 10 normally speaking women on four different days. Relative intrasubject variability was compared across speaking task, gender, and vowel type. Average across-session intrasubject variability was 5% for fundamental frequency and abduction quotient, 8% for estimated subglottal air pressure, and 15% for mean phonatory air flow during syllable repetition. There was significantly greater intrasubject variability for mean phonatory air flow and abduction quotient for the sentence repetition task. There were no significant differences in intrasubject variability across gender and vowel type. The data were used to compute cutoff values that represent the amount of variability that would be considered within normal limits. These normal data can be used for comparison when assessing and monitoring the phonatory abilities of individuals with voice disorders.

The Extra-normal Voice

2014 ◽  
pp. 728-750
Author(s):  
Michael Edward Edgerton
Keyword(s):  
Complex Networks ◽  
Crucial Role ◽  
Sound Production ◽  
Power Source ◽  
Sound Sources ◽  
New Developments ◽  
Voice Production ◽  
Multiple Parameters ◽  
Normal Voice ◽  
Production Apparatus

This chapter presents an overview of new developments in vocal exploration. Beginning with a discussion of multiple parameters involved in voice production, this chapter identifies the crucial role that non-linear phenomena has in the performance of the extra-normal voice. In this article, two related taxonomies are presented (source production related to degree of voicing; emphases within the acoustic framework of power, source, resonance, and articulation) that may be used as powerful generative tools for the production of multiple sound sources, filtering processes, and aerodynamic effects, etc. The paper then posits how scaled, multidimensional networks may be used to intelligently explore all elements of the acoustic sound production apparatus and not solely articulation, as is seen with some proponents of complex networks. In this discussion, it will be presented how fully scaling each parameter space will encompass far reaching benefits by engaging with little traversed regions of the total vocal topography.

Recognition of English spoken stressed syllables based on natural language processing and endpoint detection algorithm

2020 ◽  
Vol 39 (4) ◽  
pp. 5713-5724
Author(s):  
Zhang Qiwen
Keyword(s):  
Fundamental Frequency ◽  
Language Processing ◽  
Evaluation Method ◽  
Spoken Language ◽  
Detection Algorithm ◽  
Language Learner ◽  
Frequency Change ◽  
Good Reliability ◽  
Recognition Model ◽  
Stress Recognition

The traditional stress evaluation method cannot describe the chaotic characteristics of speech signals well or cannot fully approximate the complex nonlinear relationship between features, so that the exact location of stress cannot be accurately determined. In order to improve the recognition of spoken English stressed syllables, this study established a word stress recognition model. The model can accurately recognize the stressed syllables in the words and calculate the fundamental frequency change trajectory of the language tones using the fundamental frequency scaling function. According to this trajectory and using the time domain fundamental frequency synchronization superposition algorithm to modify the fundamental frequency parameters in the DIVA model motion instruction, the spoken language learner can master the rhythm in the spoken language. In addition, this study sets up experiments to study the effects of the model. The results show that the stress recognition model established in this paper has good reliability and stability.

Respiratory and Laryngeal Measures of Children and Women With Bilateral Vocal Fold Nodules

1994 ◽  
Vol 37 (6) ◽  
pp. 1229-1243 ◽  
Author(s):  
Christine M. Sapienza ◽  
Elaine T. Stathopoulos
Keyword(s):  
Lung Volume ◽  
Respiratory Function ◽  
Vocal Fold ◽  
Multidimensional Analysis ◽  
Specific Information ◽  
Laryngeal Function ◽  
Voice Production ◽  
Normal Voice ◽  
Vocal Fold Nodules ◽  
Simultaneous Assessment

Simultaneous assessment of laryngeal and respiratory function was completed on 8 children and 10 women with bilateral vocal fold nodules and compared to that of 8 children and 10 women with normal voice production. Laryngeal function for the individuals with bilateral vocal fold nodules was characterized by significantly higher peak, altemating, and minimum glottal airflow. The presence of the high glottal airflow was accompanied by a significantly larger lung volume excursion. Both the children with nodules and those with normal voice showed laryngeal and respiratory function differences when compared to adults. All subject groups demonstrated appropriate laryngeal and respiratory function when increasing intensity from comfortable to loud speech. Simultaneous measurement of laryngeal and respiratory function using a multidimensional analysis of voice production is advocated in the evaluation of voice disorders because it can provide specific information regarding which of the subsystems of voice production are compromised.

scholarly journals Morphological basis for the evolution of acoustic diversity in oscine songbirds

2014 ◽  
Vol 281 (1779) ◽  
pp. 20132306 ◽  
Author(s):  
Tobias Riede ◽  
Franz Goller
Keyword(s):  
Motor Control ◽  
Fundamental Frequency ◽  
Neural Control ◽  
Acoustic Parameter ◽  
Acoustic Properties ◽  
Lateral Asymmetry ◽  
Morphological Basis ◽  
Main Driver ◽  
Morphological Specialization ◽  
Acoustic Diversity

Acoustic properties of vocalizations arise through the interplay of neural control with the morphology and biomechanics of the sound generating organ, but in songbirds it is assumed that the main driver of acoustic diversity is variation in telencephalic motor control. Here we show, however, that variation in the composition of the vibrating tissues, the labia, underlies diversity in one acoustic parameter, fundamental frequency ( F 0) range. Lateral asymmetry and arrangement of fibrous proteins in the labia into distinct layers is correlated with expanded F 0 range of species. The composition of the vibrating tissues thus represents an important morphological foundation for the generation of a broad F 0 range, indicating that morphological specialization lays the foundation for the evolution of complex acoustic repertoires.

Changes in the male voice at puberty: vocal fold length and its relationship to the fundamental frequency of the voice

1998 ◽  
Vol 112 (5) ◽  
pp. 451-454 ◽  
Author(s):  
Meredydd Harries ◽  
Sarah Hawkins ◽  
Jeremy Hacking ◽  
Ieuan Hughes
Keyword(s):  
Fundamental Frequency ◽  
Vocal Fold ◽  
Gradual Increase ◽  
Vocal Folds ◽  
Frequency Change ◽  
Male Voice ◽  
Pubertal Stage ◽  
Sudden Drop ◽  
Ultrasound Measurements ◽  
The Voice

AbstractUltrasound measurements of the vocal folds were taken for a number of boys passing through puberty. The boys were grouped according to their pubertal stage as defined by Tanner and there was a gradual increase in the length of the vocal folds as puberty progressed. The fundamental frequency of the boys' speaking voice was recorded via laryngography and a good correlation between the length of the vocal folds and the frequency of the voice was seen. The sudden drop in frequency seen between Tanner stages 3 and 4 did not correlate with similar changes in the length of the vocal folds at this time but stroboscopic findings suggest a change in the structure and mass of the vocal folds at this time of maximum frequency change.

Sign in / Sign up

Export Citation Format

Share Document