Results 121 to 130 of about 831 (178)
Some of the next articles are maybe not open access.
Classroom acoustics III: Acoustical model studies of elementary school classrooms
The Journal of the Acoustical Society of America, 1998A 1:4 scale model was constructed with a series of interchangeable wall and ceiling panels to allow a battery of acoustical tests to be conducted for a variety of classroom designs. The walls and ceiling of the room could be changed from sound absorbent to sound reflective materials quickly. Scale furniture was also constructed for the room.
Gary W. Siebein +8 more
openaire +1 more source
A green pathway to classroom acoustics: A comparison of classroom acoustic standards.
The Journal of the Acoustical Society of America, 2008Towne seems to have started the modern classroom acoustics movement, and Nixon was one of its earliest volunteers. Nixon contributed to an important success of that movement, the development of ANSI standard for classroom acoustics, S12.60-2002. Some of Nixon’s collaborations with Towne are remembered.
Daniel Bruck, Alexis Kurtz
openaire +1 more source
The Journal of the Acoustical Society of America, 1998
This pilot study used participatory fieldwork in a number of kindergarten through eighth grade classrooms to evaluate the acoustic setting that supports learning. Dynamic interactions among administrators, teachers, students, parents, and research team members makes a difference in learning. It was found that classroom interaction depends on the social
Mary Jo Hasell +8 more
openaire +1 more source
This pilot study used participatory fieldwork in a number of kindergarten through eighth grade classrooms to evaluate the acoustic setting that supports learning. Dynamic interactions among administrators, teachers, students, parents, and research team members makes a difference in learning. It was found that classroom interaction depends on the social
Mary Jo Hasell +8 more
openaire +1 more source
Batiment International, Building Research and Practice, 1982
For speech to be intelligible in classrooms, the reverberation time of sound should be reasonably short, allowing for the sound intensity required for the absorption characteristics. This optimum reverberation time is, in turn, related to the volume of the room and the degree of occupancy.
openaire +1 more source
For speech to be intelligible in classrooms, the reverberation time of sound should be reasonably short, allowing for the sound intensity required for the absorption characteristics. This optimum reverberation time is, in turn, related to the volume of the room and the degree of occupancy.
openaire +1 more source
Classroom demonstrations of acoustic beamforming
The Journal of the Acoustical Society of America, 2012A tabletop apparatus permitting demonstrations and hands-on student exercises in the acoustic beamforming of linear arrays is described. The apparatus can be used to demonstrate how interference effects from two or more linearly arranged sources produce patterns of maxima and minima as described by theory. A transmitting array is attached to the top of
openaire +2 more sources
Acoustical evaluation of preschool classrooms
The Journal of the Acoustical Society of America, 2003An investigation was made of the acoustical environments in the Berwick Preschool, Vancouver, in response to complaints by the teachers. Reverberation times (RT), background noise levels (BNL), and in-class sound levels (Leq) were measured for acoustical evaluation in the classrooms.
Wonyoung Yang, Murray Hodgson
openaire +1 more source
A primer on classroom acoustics.
The Journal of the Acoustical Society of America, 2010Research involving quantitative and qualitative evaluation of classroom activities has shown that speech perception and intelligibility in elementary, middle, and high schools can be measured, modeled, and simulated based on an impulse response-based theory. The theory combines the vocal production of the speaker, the hearing abilities of the listeners,
Gary W. Siebein +3 more
openaire +1 more source
Acoustical analysis of preschool classrooms
The Journal of the Acoustical Society of America, 2018The present study explores acoustical parameters, including unoccupied and occupied noise levels and reverberation time (RT), in typical preschool classrooms located in the northern suburbs of Chicago. The study was motivated by the following observations: (1) preschool classrooms are often established in buildings that were not initially constructed ...
Tina M. Grieco-Calub, Z. Ellen Peng
openaire +1 more source
Noise levels exceeding WHO recommendations of 35–40 dBA in classrooms disrupt teaching and learning. Internal and external noise sources, such as traffic and adjacent classrooms, are prevalent in school environments. This summary discusses about enhancing classroom acoustics for better learning.
E Mahiban Ross, D Beula Jeba Malar
openaire +1 more source
E Mahiban Ross, D Beula Jeba Malar
openaire +1 more source
Classroom acoustics: Three pilot studies
The Journal of the Acoustical Society of America, 2005This paper summarizes three related pilot projects designed to focus on the possible effects of classroom acoustics on fine auditory discrimination as it relates to language acquisition, especially English as a second language. The first study investigated the influence of improving the signal-to-noise ratio on the differentiation of English phonemes ...
openaire +1 more source