座位安排是相当有效的(按现代标准，紧凑)，而相对低的(1.2秒)混响时间则保障了良好的语音清晰度。
The seating arrangement is quite efficient (tight by modern standards), and the relatively low (1.2 SEC) reverberation time makes for good intelligibility.
以今天的标准来说这些大厅相对较小，座位容量从400到600人，混响时间一般不超过1.5秒(Bagenal and Wood, 1931)。
These halls were relatively small by today's standards with seating capacities ranging from 400 to 600, and reverberation times were generally less than 1.5 seconds (Bagenal and Wood, 1931).
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