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

Опубликовано 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.

See more at microsoft.com/en-us/research/v...