Audio corresponding to the moving picture of a virtual reality (VR) camera can be recorded using a VR microphone. The resulting A or B-format channels are decoded with respect to the look-direction for generating binaural or multichannel audio following the visual scene. Existing post-production tools are limited to only linear matrixing and filtering of the recorded channels when only the signal of a VR microphone is available. A time-frequency adaptive method is presented: providing native B-format manipulations, such as equalization, which can be applied to sound arriving from a specific direction with a high spatial resolution, yielding a backwards compatible modified B-format signal. Both linear and adaptive approaches are compared to the ideal case of truly equalized sources.
Authors:
Favrot, Alexis; Faller, Christof
Affiliation:
Illusonic GmbH, Uster, Switzerland
AES Convention:
147 (October 2019)
Paper Number:
10293
Publication Date:
October 8, 2019
Subject:
Spatial Audio, Part 3
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