TITLE
THE ASSESSMENT OF INTELLIGIBILITY OF SPEECH IN THE AMBIENTAL CONDITIONS OF THE OFFICE
AUTHOR(S)
Dijana Kostić1, Zoran Milivojević 2, Bojan Prlinčević3, Milan Cekić4, Violeta Stojanović 5, Ratko Ivković 6
ABSTRACT
In this paper the assessment of speech intelligibility in the presence of different types of noise in a situation that happen in real life in ambient of office. In order to evaluate speech intelligibility in the presence of different kinds of noise, an experiment was conducted, using the binaural method. Matrix sentences obtained from words from the Serbian Matrix Sentence Test Base (SMST) were used as an input signal. The interference signals that were used: diffuse noise, and a combination of different types of noise that occur in the office environment (sound of a pen, keyboard, etc.) as well as early reflections. The parameters used for testing: SNR = (0, - 2, -5) dB; b) speech signal angle φs = 0°; c) angle of reflection φn = 0°; e) angle of diffuse noise φDN = 0 : 5 : 360°, e) amplitude of reflection Ar = 1; f) delay time between direct and reflected signal Δt = (0, 10, 25, 50) ms. The result of the test that is obtained is the STOI coefficient, for the left and for the right ear. After analyzing the results and comparing them with the results of similar tests and the IEC 60268-16:11 standard, a conclusion was brought about speech intelligibility.
DOI
http://www.doi.org/10.70456/WUVH9504
DOWNLOAD
https://unitechsp.tugab.bg/images/2024/3-CET/s3_p178_v1.pdf
How to cite this article:
Dijana Kostić, Zoran Milivojević, Bojan Prlinčević, Milan Cekić, Violeta Stojanović, Ratko Ivkovićelov, THE ASSESSMENT OF INTELLIGIBILITY OF SPEECH IN THE AMBIENTAL CONDITIONS OF THE OFFICE, UNITECH – SELECTED PAPERS - 2024