Autor: Leo, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Speech Intelligibility Measurements in Auditorium
Autorzy:: Leo, K.
Powiązania:: https://bibliotekanauki.pl/articles/1537493.pdf
Data publikacji:: 2010-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.55.Hy
Opis:: Speech intelligibility was measured in Auditorium Novum on Technical University of Gdansk (seating capacity 408, volume 3300 $m^{3}$). Articulation tests were conducted; STI and Early Decay Time EDT coefficients were measured. Negative noise contribution to speech intelligibility was taken into account. Subjective measurements and objective tests reveal high speech intelligibility at most seats in auditorium. Correlation was found between spatial differences in responses to articulation tests and EDT for low frequencies divided by EDT for high frequencies.
Źródło:: Acta Physica Polonica A; 2010, 118, 1; 110-114
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Sound Field Diffusivity Assessment in Non-Stationary State by Measuring Nonuniformity of Sound Decay Curve
Autorzy:: Leo, K.
Powiązania:: https://bibliotekanauki.pl/articles/1490368.pdf
Data publikacji:: 2012-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.55.Br
43.55.Cs
Opis:: Methods of sound diffusion assessment presented in literature require information on directional properties of the sound field in stationary state. These methods are complicated and not often applicable in measurement practice. Measurement of the sound field diffusivity during its formation can be assessed from sound level decay curve deviation from a linear shape. With this method, the degree of diffusivity has been determined in three rooms. Measurements were performed in rooms differing in volumes and sound absorption. Changes in sound decay uniformity were noted, which can be translated into diffusion coefficient changes. Results indicate that diffusion increases as room absorption decreases. Diffusion does not depend on room volume. Changes of sound decay uniformity follow trends that are well described by power function.
Źródło:: Acta Physica Polonica A; 2012, 121, 1A; A-197-A-200
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Influence of Modulation Detection Threshold on Speech Intelligibility
Autorzy:: Leo, K.
Powiązania:: https://bibliotekanauki.pl/articles/1504420.pdf
Data publikacji:: 2011-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.55.Hy
Opis:: Speech intelligibility in classrooms and lecture halls was investigated. Acoustical measurements in the rooms have been performed, with special concern about 125 ms of early decay phenomenon. Weighting function of early reflections relative energy derived from modulation threshold and speech modulation spectrum of signal is proposed.
Źródło:: Acta Physica Polonica A; 2011, 119, 6A; 1023-1026
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Influence of Acoustical Adaptation on Classrooms Acoustical Enviroment
Autorzy:: Wróblewska, D.
Leo, K.
Powiązania:: https://bibliotekanauki.pl/articles/1490369.pdf
Data publikacji:: 2012-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.55.Dt
Opis:: A number of objective ana subjective acoustical parameters, referring to the reverberance, and spatial distribution of sound and speech intelligibility, were measured before and after the acoustical adaptation of a classroom. Three configurations of arrangements differing in used materials' sound absorbing coefficient were analyzed. The results indicate the expected improvement of the acoustical environment according to design assumptions.
Źródło:: Acta Physica Polonica A; 2012, 121, 1A; A-201-A-204
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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