Sparsity-aware Sound Field Capturing / Joint Source and Sensor Placement for Sound Field Control
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Microsoft Research334 тыс
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18.07.23 – 2 4254:44Опубликовано 15 мая 2018, 18:44
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.
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