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Lombard Effect in Polish Speech and its Comparison in English Speech

Kleczkowski P., Żak A., Król-Nowak A.

Archives of Acoustics

2017

Vol. 42, No. 4

561--569

The first extensive investigation on the Lombard effect with Polish speech has been performed. Characteristic parameters of Lombard speech were measured: intensity, fundamental frequency, spectral tilt, duration of words, duration of pauses and duration of vowels. The effect was investigated in a task involving real communication – solving a Sudoku puzzle. The speakers produced speech in quiet and in three different backgrounds: competing speech, speech-shaped noise and speech-modulated noise. The experimental conditions were held as close as possible to those in the study by Cooke and Lu (2010) so that conclusions could be drawn whether differences between the Lombard effect in Polish speech and English speech existed. Most of the findings on the Lombard effect known from the literature have been confirmed with Polish speech. In three parameters, Polish speakers were more sensitive to modulated backgrounds while English speakers were more sensitive to a stationary background. In both languages, the modulated backgrounds induced speakers to extend pauses in the communication tasks.

Segmentacja mowy polskiej z wykorzystaniem transformacji falkowej

Tarasiuk M., Gosiewski Z.

Acta Mechanica et Automatica

2010

Vol. 4, no. 1

92-95

W artykule przedstawiono koncepcję metody segmentacji słów wypowiadanych w języku polskim. Jako narzędzie w procesie segmentacji wykorzystano transformację falkową. Zaproponowano algorytm postępowania oraz przedstawiono wyniki prowadzonych prac badawczych. Wykorzystując opracowaną metodę dokonano podziału wypowiadanych słów i sprawdzono poprawność jego wykonania. Niniejsze badanie stanowi platformę bazową do dalszych prac zmierzających w kierunku opracowania automatycznego systemu rozpoznawania mowy. Badania i obliczenia wykonywano w oparciu o oprogramowanie Matlab.

This article introduces an conception on polish spoken words segmentation using wavelet transformation. There was suggested an algorithm and presented achievements made during researches. Spoken words were then divided and their segmentation correctness was verified with use of mentioned above method. This study provides a base platform for further development of the automatic speech recognition system. Research and calculations were executed in MATLAB.

McGurk effect in Polish listeners

Majewski W.

Archives of Acoustics

2008

Vol. 33, No. 4

447-454

The phenomenon of a multi-modal interaction between audio and video stimuli, called the McGurk effect, was investigated for the Polish subjects. Two experiments were performed. In the first experiment the occurrence of McGurk effect for Polish speech was examined. The results of the first experiment for which over 94% of listeners' answers were consistent with the audio stimuli indicated that generally it is very difficult to evoke the McGurk effect in Polish listeners. In the second experiment the stimuli for which the McGurk effect was distinctly present were subjected to different kind of audio or video distortions and presented to the listeners. The distortions in the visual signals resulted in an increase of the answers consistent with the audio stimuli while the distortions in the audio signals resulted in an increase of the answers consistent with the visual stimuli.