Mixing time prediction using spherical microphone arrays.
Mixing time prediction using spherical microphone arrays.
复制标题
使用球形麦克风阵列预测混合时间。
DOI：
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发表时间：
2015
影响因子：
2.4
通讯作者：
Emanuël Habets
中科院分区：
文献类型：
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作者：
Philipp Götz;K. Kowalczyk;A. Silzle;Emanuël Habets
人类对室内声学的感知取决于室内脉冲响应中从早期反射到晚期混响的过渡时间，即所谓的混频时间。在这封信中，提出了一种多通道混合时间预测方法，与最先进的基于通道的预测方法相比，该方法考虑了声场的时空特性。通过测量和声学模拟，将所提出的基于扩散的方法与现有的基于模型和通道的预测方法进行了比较，结果表明，该方法与感知混合时间具有良好的相关性。此外，提出了基于反射密度的混合时间定义与预测方法之间的关系。
Human perception of room acoustics depends among others on the time of transition from early reflections to late reverberation in room impulse responses, which is known as mixing time. In this letter, a multi-channel mixing time prediction method is proposed, which in contrast to state-of-the-art channel-based predictors accounts for spatiotemporal properties of the sound field. The proposed diffuseness-based method is compared with existing model- and channel-based prediction methods through measurements and acoustic simulations, and is shown to correlate well with the perceptual mixing time. Furthermore, insights into relations between prediction methods and mixing time definitions based on reflection density are presented.