Читать книгу Engineering Acoustics - Malcolm J. Crocker - Страница 127

A classroom has dimensions 4 × 6 × 10 m³ and a reverberation time of 1.5 seconds. (a) Determine the total sound absorption of the classroom; (b) if 35 students are in the classroom, and each is equivalent to 0.45 sabins (m²) sound absorption, what is the new reverberation time of the classroom?