AES New York 2015
Tutorial T1

Thursday, October 29, 9:00 am — 10:30 am (Room 1A22)

T1 - Parametric Spatial Audio Processing: An Overview and Recent Advances

Emanuël A. P. Habets, International Audio Laboratories Erlangen - Erlangen, Germany
Oliver Thiergart, International Audio Laboratories Erlangen - Erlangen, Germany

Parametric spatial processing is a promising and emerging technique that is fundamentally different from traditional spatial processing techniques. First, a relatively simple sound field model is adopted and the parameters of the model (such as for example the direction of arrival and diffuseness), are estimated in a time-frequency domain. Second, the estimated parameters are used to process the received microphone signals. The compact and efficient representation of the sound field can be used to develop algorithms for different applications. In this tutorial different sound field models and corresponding parameter estimation techniques will be presented. We will then focus on selected applications such as speech enhancement (directional filtering and dereverberation), acoustical zooming, spatial audio communication, and spatial sound reproduction. Finally, we show how one of the parametric representations can be used to create virtual microphone signals with user-defined pickup patterns.

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