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pro vyhledávání: '"Michael H. L. Hecker"'
Autor:
Michael H. L. Hecker
Publikováno v:
The Journal of the Acoustical Society of America. 34:179-187
An electrical analog of the nasal cavities has been designed for use in conjunction with a dynamically controllable analog of the vocal tract [G. Rosen, J. Acoust. Soc. Am. 30, 201 (1958)]. The acoustical coupling between vocal tract and nasal caviti
Publikováno v:
IEEE Transactions on Audio and Electroacoustics. 16:100-106
Many types of speech-communication systems may be readily evaluated with available electronic devices which employ the concept of the Articulation Index. To study the feasibility of using such devices to evaluate time-varying systems, recordings were
Autor:
Michael H. L. Hecker, Carl E. Williams
Publikováno v:
The Journal of the Acoustical Society of America. 44:1002-1006
Several intelligibility tests are currently being used to evaluate speech‐communication systems. Individuals engaged in the development of such systems would often like to compare the performance of a system evaluated with one test with the perform
Publikováno v:
The Journal of the Acoustical Society of America. 44:993-1001
In order to induce stress in an experimental subject, a task involving the addition of numbers under time pressure was developed. The subject was required to read six meters and to announce the sum of his readings, together with a test phrase. By con
Autor:
Michael H. L. Hecker, E. James Kreul
Publikováno v:
The Journal of the Acoustical Society of America. 49:1283-1287
Speech samples of 50 adult male speakers were presented to 22 listeners, who estimated the age of each speaker and rated the adequacy, hoarseness, harshness, and breathiness of his voice. Five of the speakers were patients with cancer of the vocal fo
Autor:
Carl E. Williams, Michael H. L. Hecker
Publikováno v:
The Journal of the Acoustical Society of America. 39:946-952
Preference tests used in the evaluation of speech‐communication systems typically employ as reference conditions different levels of one type of distortion, produced by a single reference system. A new preference test has been developed to explore
Publikováno v:
The Journal of the Acoustical Society of America. 53:1169-1171
The Modified Rhyme Test (MRT) is generally more convenient to use than the Harvard PB‐Word Test, but less capable of discriminating among highly intelligible communication systems. An experiment was performed to determine whether the higher scores
Autor:
E. James Kreul, Michael H. L. Hecker
Publikováno v:
The Journal of the Acoustical Society of America. 49(4)
Speech samples of five patients with cancer of the vocal folds and five individually matched normal speakers were analyzed with respect to: (1) maximum rate of change of fundamental frequency, (2) fundamental‐frequency perturbations related to spec
To study the feasibility of using the Speech Communication Index Meter (SCIM) to evaluate time-varying communication systems, recordings were made of the transmission characteristics of a troposphere-scatter system. At many specific points in time in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6419d97fcac67b29db0724e1d79969f1
https://doi.org/10.21236/ad0656788
https://doi.org/10.21236/ad0656788