【摘要】 为简化使用脉冲响应平方反向积分求混响时间,有人提出直接使用脉冲声能衰变率求混响时间的方法。文中对直接使用脉冲声能衰变与使用反向积分法进行了比较,讨论了直接使用脉冲声能衰变求混响时间的不稳定性,探讨了使用反向积分法更为精确的原因。更多还原

【Abstract】 As a simplification of the reverberation time (RT) measurement method using integrated impulse response method (IIRM),it is suggested that the decay rate of measured impulse response could be directly used to calculate the RT. The simplified method could be named impulse response decay method (IRDM). In this paper, the two methods, IIRM and IRDM, are compared, mainly focusing on the stability of the methods. The reason of why the IIRM seems more stable than the IRDM is explained.更多还原