As immersive media content and technology begin to enter the marketplace, the need for truly immersive spatial reverberation tools takes on a renewed significance. A novel spatial impulse response capture technique optimized for the 22.2 multichannel audio format is presented. The proposed technique seeks to offer a path for engineers who are interested in creating three-dimensional spatial reverberation through convolution. Its design is informed by three-dimensional microphone techniques for the channel-based capture of acoustic music. A technical description of the measurement system used is given. The processes by which the spatial impulse responses are captured and rendered, including deconvolution and loudness normalization, are described. Three venues that have been measured using the proposed technique are presented. Preliminary listening sessions suggest that the array is capable of delivering a convincing three-dimensional reproduction of several acoustic spaces with a high degree of fidelity. Future research into the perception of realism in spatial reverberation for immersive music production is discussed.
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