Beamformed microphone array
AssigneeDotterel Technologies Limited
InventorsShaun Taggart Pentecost, Samuel Seamus Rowe, Shaun Edlin, Matthew Rowe, Hin Loh, Mark Poletti
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Abstract
According to a first aspect of the invention, there is provided a method of beamforming for a linear microphone array comprising: storing a desired end-fire beam response including a beamwidth specification; determining an error data set from the stored end-fire beam response; and determining beamforming weights based on a least squares minimisation of the error data set. There are also provided a system, a microphone array, and an apparatus.
Claims20
A method of beamforming for a plurality of linear microphone arrays within a three-dimensional housing, comprising:
- storing a desired end-fire beam response including a beamwidth specification;
- determining and storing diffraction behaviors around a microphone array of the plurality of linear microphone arrays;
- compensating for the diffraction behaviors by including a diffraction compensation factor;
- determining an error data set from the stored end-fire beam response and the diffraction compensation factor;
- and
- determining beamforming weights based on a least squares minimization of the error data set.
Dependencies are inferred from the claim text.