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Wpływ kształtu i sposobu pobudzania piszczałki organowej na widmo dźwięku

100%

Poremski T. , Kin M. J.

tom Vol. 83, nr 27

537-542

In the paper, the research on the organ pipe is described. Some principles and tales dependent on the constructional feature and based on the results of analysis are presented. These rules may be useful for organ designers as well as the researchers looking for particular features of the organ sound.

Evaluation of sound quality features on environmental noise effects - a case study applied to road traffic noise

80%

Paszkowski W. , Kotus J. , Poremski T. , Kostek B.

tom Vol. 25, nr 3

517--531

The paper shows a study on the relationship between noise measures and sound quality (SQ) features that are related to annoyance caused by the traffic noise. First, a methodology to perform analyses related to the traffic noise annoyance is described including references to parameters of the assessment of road noise sources. Next, the measurement setup, location and results are presented along with the derived sound quality features. Then, statistical analyses are performed to compare the measurement results and sound quality features. The included conclusions are focused on showing that the obtained loudness values, regardless of the used system, are similar in a statistical sense. Contrarily, sharpness, roughness and fluctuation strength values differ for the tools employed.