Results 151 to 160 of about 25,023 (216)

Occupational noise in the university setting: dosimetric assessment and strategies for exposure reduction. [PDF]

open access: yesFront Public Health
Torres-Cobo L   +4 more
europepmc   +1 more source

Classroom Acoustics

Language, Speech, and Hearing Services in Schools, 1996
Classroom acoustics are generally overlooked in American education. Noise, echoes, reverberation, and room modes typically interfere with the ability of listeners to understand speech. The effect of all of these acoustical parameters on teaching and learning in school needs to be researched more fully.
Frederick S. Berg   +2 more
openaire   +1 more source

Classroom acoustics II: Acoustical conditions in elementary school classrooms

The Journal of the Acoustical Society of America, 1998
Acoustical measurements of speech transmission index, reverberation time, early reverberation time, early-to-late energy ratios, loudness (or relative strength), articulation index, background noise levels, and signal-to-noise ratios were made in a number of elementary school classrooms in one school district to see how many rooms actually had ...
Martin A. Gold   +8 more
openaire   +1 more source

Classroom acoustics III: Acoustical model studies of elementary school classrooms

The Journal of the Acoustical Society of America, 1998
A 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

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