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Author: Gayland L. Draegert Publisher: ISBN: Category : Languages : en Pages : 14
Book Description
The investigation isolates those variables which seem to change intelligibility in military situations in which a talker must compete with the noise of planes, gunfire, and other battle confusion. Analyses were made of the voices of both good and poor speakers. The variables compared were intensity, speech time, voice quality, and pitch factors. Loudness was the most significant single factor that differentiated high and low intelligibility. Increased loudness improves intelligibility. Syllable and word duration affected intelligibility. A longer duration helps intelligibility. The other voice variables did not seem to be important. (Author).
Author: Gayland L. Draegert Publisher: ISBN: Category : Languages : en Pages : 14
Book Description
The investigation isolates those variables which seem to change intelligibility in military situations in which a talker must compete with the noise of planes, gunfire, and other battle confusion. Analyses were made of the voices of both good and poor speakers. The variables compared were intensity, speech time, voice quality, and pitch factors. Loudness was the most significant single factor that differentiated high and low intelligibility. Increased loudness improves intelligibility. Syllable and word duration affected intelligibility. A longer duration helps intelligibility. The other voice variables did not seem to be important. (Author).
Author: R. C. Bilger Publisher: ISBN: Category : Languages : en Pages : 19
Book Description
A study was undertaken to determine the relationships between talker intelligibility in noise and several voice variable measures derived from intensity, duration and pitch analyses of several speech samples. In addition, the best combination of the voice variables for predicting speech intelligibility in noise was determined. A talker intelligibility score as well as measures on 14 speech variables were determined from an analysis of speech samples obtained from 88 subjects. Product-moment intercorrelations among all the variables were computed. All the relationships between talker intelligibility in noise and the voice variables investigated were found to be linear. Mean syllable intensity and mean syllable duration were found to make the highest contribution to talker intelligibility scores. When combined with other speech variables, intensity and duration were most highly correlated with pitch variability. A multiple correlation coefficient of 0.88 was found for the relationship between talker intelligibility in noise and mean syllable intensity, mean syllable duration and pitch variability. (Author).
Author: Jont B. Allen Publisher: Morgan & Claypool Publishers ISBN: 1598290088 Category : Computers Languages : en Pages : 139
Book Description
This work extended the Bell Labs' speech articulation studies with ideas from Shannon's Information theory. Both Miller and Fletcher showed that speech, as a code, is incredibly robust to mangling distortions of filtering and noise. Regrettably much of this early work was forgotten. While the key science of information theory blossomed, other than the work of George Miller, it was rarely applied to aural speech research. The robustness of speech, which is the most amazing thing about the speech code, has rarely been studied. It is my belief (i.e., assumption) that we can analyze speech intelligibility with the scientific method. The quantitative analysis of speech intelligibility requires both science and art. The scientific component requires an error analysis of spoken communication, which depends critically on the use of statistics, information theory, and psychophysical methods.
Author: Devon Sawin Otero Publisher: ISBN: Category : Speech, Alaryngeal Languages : en Pages : 53
Book Description
As clinicians and researchers, it is our ultimate goal to improve our patients' quality of life. This goal is achieved through reliable measurements such as speech intelligibility, which is a standard assessment of a patient's impairment level. Attempts to correlate this measurement with a patient's daily communication outside the clinic have been weak or uncertain. In this study we explore the correlation between speech intelligibility and self-report measures in a population of head and neck cancer patients, alaryngeal tracheoesophageal speakers (TEP). Participants: 24 individuals using TEP, 66 naïve listeners who performed intelligibility ratings of the speakers in quiet and in noise. The strength of these relationships was compared across the quiet and noise conditions. There was a weak correlation (r =0.201 and r= 0.003) between speech intelligibility in quiet and self-report measures. A slightly stronger correlation (r = 0.435 and r=0.311) was found between speech intelligibility in noise and self-report measures. The results of the study suggest that intelligibility in noise is a better predictor of self-rated communication function than intelligibility in quiet.
Author: Publisher: ISBN: Category : Languages : en Pages : 28
Book Description
Speech communication are seldom isolated auditory events in quiet environments. Frequently, the desired speech signal is confounded with other speech signals and noises. Real-world environments often degrade the intelligibility of the desired speech signal. In this book chapter (Binaural and Spatial Hearing in Real and Virtual Environments, Lawrence Erlbaum Associates, Mahwah NJ, publishers, 1997), the literature on the speech intelligibility of competing messages and the masking of speech is reviewed. The literature on the detection of speech is included to describe factors that can affect speech intelligibility. Following the review, several experiments are presented in which the effects of various conflicting signals on speech communications are measured. Virtual audio over headphones is used to investigate the effects of directional separation of talkers, the quantity and gender of talkers, the degree of masker interaural correlation, masking level, and selective attention. The results are discussed and compared with the previous literature.
Author: Gayland L. Draegert
Author: Gayland L. Draegert
Author: R. C. Bilger
Author: Karl S. Pearsons
Author: Jont B. Allen
Author: Anthony E. Castelnovo
Author: Devon Sawin Otero
Author: 
Author: Irwin Pollack
Author: Jerome G. Alpiner
Author: Richard John Dinham