Wlasciwosci akustyczne pomieszczen szkolnych

• Autorzy: Koszarny Z. , Chyla A.
• Języki publikacji: PL

Abstrakty

PL

W pracy przedstawiono ocenę właściwości akustycznych pomieszczeń szkolnych w placówkach zbudowanych w latach 70. i współcześnie. Podstawowym parametrem oceny był czas pogłosu i proporcje akustyczne pomieszczeń. Kryterium oceny stanowiły przepisy stosowane w krajach europejskich i zalecenia ekspertów WHO.

EN

Quality and usefulness of school rooms for transmission of verbal information depends on the two basic parameters: form and quantity of the reverberation time, and profitable line measurements of school rooms from the acoustic point of view. An analysis of the above-mentioned parameters in 48 class rooms and two gymnasiums in schools, which were built in different periods, shows that the most important problem is connected with too long reverberation time and inappropriate acoustic proportions. In schools built in the 1970s, the length of reverberation time is mostly within a low frequency band, while in schools built contemporarily, the maximum length of disappearance time takes place in a quite wide band of 250-2000 Hz. This exceeds optimal values for that kind of rooms at least twice, and five times in the newly built school. A long reverberation time is connected with a low acoustic absorption of school rooms. Moreover, school rooms are characterised by inappropriate acoustic proportions. The classrooms, in their relation to the height, are too long and too wide. It is connected with deterioration of the transmission of verbal information. The data show that this transmission is unequal. Automatically, it leads to a speech disturbance and difficulties with understanding. There is the need for adaptation of school rooms through increase of an acoustic absorption.

Słowa kluczowe

PL

szkoly; ocena jakosci; wlasciwosci akustyczne; akustyka; pomieszczenia szkolne; higiena komunalna

EN

school; quality assessment; acoustic property; acoustics; classroom; communal hygiene

• Wydawca: -
• Czasopismo: Roczniki Państwowego Zakładu Higieny
• Rocznik: 2003
• Tom: 54
• Numer: 3
• Opis fizyczny: s.311-320, wykr.,bibliogr.

Twórcy

autor

Koszarny Z.

• Panstwowy Zaklad Higieny, ul.Chocimska 24, 00-791 Warszawa

autor

Chyla A.