Sparsity-aware Sound Field Capturing / Joint Source and Sensor Placement for Sound Field Control

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Microsoft Research
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Published on ● Video Link: https://www.youtube.com/watch?v=4rwtA-SWpRA


Duration: 56:08
1,488 views
14

Two topics are addressed in this talk. Sound field capturing is aimed at interpolating and reconstructing a spatial acoustic filed with multiple microphones, which can be applied to high fidelity audio playback using loudspeakers or headphones, spatial noise cancellation, sound visualization, etc. A method based on sparse sound field decomposition is introduced for reconstructing a sound field inside a region including sources, which is known as an ill-posed problem. Next, the source (loudspeaker) and sensor (control point/microphone) placement problem for sound field control is addressed. A method based on empirical interpolation method, which is originally proposed for numerical analysis of partial differential equation, is introduced.

See more at https://www.microsoft.com/en-us/research/video/sparsity-aware-sound-field-capturing-joint-source-sensor-placement-sound-field-control/



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