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剧场观众厅满场混响时间的测定值受季节的影响很大,致使各剧场的满场值难以进行比较和评价。对此,本文通过对观众厅空、满场混响时间的测定值求得听众吸声增量(听众坐在椅子上的吸声量。扣除。座椅的吸声量谓之)的统计值,以此,将空场实测混响时间推算满场值的方法。这样,不仅提高了满场混响时间的可比性,同时也减少了满场测定的烦杂工作量。用这种方法.通过核算.计算值与实测值的偏差在±6%的范围内。
The measured value of the full-field reverberation time in the theater auditorium is greatly affected by the season, making it difficult to compare and evaluate the full-scale value of each theater. In this regard, this article obtains the statistical value of the listener’s sound absorption increments (the amount of sound absorption of the listener sitting in a chair. The deduction. The amount of sound absorption of the seat) is determined by the measured values of the auditorium and full-field reverberation time of the audience. In this way, the method of calculating the full-field value from the measured reverberation time of the empty field. This not only improves the comparability of the full-field reverberation time, but also reduces the tedious workload of the full-field measurement. Use this method. Through accounting. The deviation between the calculated value and the measured value is within ±6%.