Advanced B-Format Analysis

Spatial sound rendering methods that use B-format have moved from static to signal-dependent, making B-format signal analysis a crucial part of B-format decoders. In the established B-format signal analysis methods, the acquired sound field is commonly modeled in terms of a single plane wave and diffuse sound, or in terms of two plane waves. We present a B-format analysis method that models the sound field with two direct sounds and diffuse sound, and computes the three components' powers and direct sound directions as a function of time and frequency. We show the effectiveness of the proposed method with experiments using artificial and realistic signals.


Presented at:
AES 144th Convention, Milan, Italy, May 23-26, 2018
Year:
May 14 2018
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 Record created 2019-10-21, last modified 2019-10-24

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