Adaptive beamformer for enhanced far-field sound pickup
AssigneeBose Corporation
InventorsYang Liu, Alaganandan Ganeshkumar
Life of this patent
Estimating the term…
Abstract
Various implementations include approaches for sound enhancement in far-field pickup. Certain implementations include a method of sound enhancement for a system including microphones for far-field pick up. The method can include: generating, using at least two microphones, a primary beam focused on a previously unknown desired signal look direction, the primary beam producing a primary signal configured to enhance the desired signal; generating, using at least two microphones, a reference beam focused on the desired signal look direction, the reference beam producing a reference signal configured to reject the desired signal; and removing, using at least one processor, components that correlate to the reference signal from the primary signal.
Claims20
A method of sound enhancement for a system including microphones for far-field pick up, the method comprising:
- generating, using at least two microphones, a primary beam focused on a previously unknown desired signal look direction, the primary beam producing a primary signal configured to enhance the desired signal;
- generating, using at least two microphones, a reference beam focused on the desired signal look direction, the reference beam producing a reference signal configured to reject the desired signal;
- and
- removing, using at least one processor, components that correlate to the reference signal from the primary signal.
A system including:
- a plurality of microphones for far-field pickup;
- and
- at least one processor configured to:
- generate, using at least two of the microphones, a primary beam focused on a previously unknown desired signal look direction, the primary beam producing a primary signal configured to enhance the desired signal,
- generate, using at least two of the microphones, a reference beam focused on the desired signal look direction, the reference beam producing a reference signal configured to reject the desired signal, and
- remove components that correlate to the reference signal from the primary signal.
Dependencies are inferred from the claim text.