厅堂双耳脉冲响应的测量技术

Measuring Technology of Binaural Impulse Responses in Halls

双耳脉冲响应是厅堂音质设计过程中非常重要的因素.双耳脉冲响应测量可以简化厅堂音质的现场测试工作量.根据ISO3382标准,通过01 dB声学系统测量厅堂的双耳脉冲响应.在测量过程中充分考虑人工头的影响.物理参数与双耳声学参数可以通过测得的双耳脉冲响应计算所得.通过卷积双耳脉冲响应与消声室记录的声信号可以实现厅堂声音的可听化.

The binaural impulse responses were measured through the 01dB symphonie system and the 01dB dummy head. According to ISO3382, binaural impulse responses were obtained through the MLS technique. The effect of the head was considered during the measurement. The physical and binaural acoustical parameters were calculated from the measured binaural impulse responses. The auralization can be realized through convolution the binaural impulse responses with the anechoic signal recorded in the anechoic chamber. The binaural impulse responses play great role in the auditorium acoustical design. The results can provide guideline to the concert hall acoustical design.