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AssigneeCirrus Logic, Inc.
InventorsNima Yousefian Jazi, Justin L. Allen
Estimating the term…
An adaptive beamformer includes at least first and second microphones that generate respective audio signals that include speech and noise, a controller that detects occurrences of speech and noise within the audio signals, an adaptive speech cancelling filter that cancels speech from the audio signal of the second microphone to provide a speech-cancelled signal, an adaptive mixing block that combines the speech-cancelled signal and the second microphone audio signal to provide a noise reference signal in a weighted manner such that a weight of the second microphone signal is increased proportionally with an amount of the detected noise and a weight of the speech-cancelled signal is increased proportionally with an amount of the detected speech, and an adaptive noise cancelling filter that uses the noise reference signal to remove the noise from the first microphone audio signal.
An adaptive beamformer, comprising:
A method for adaptive beamforming using at least first and second microphones that generate respective audio signals that include speech and noise, comprising:
A non-transitory computer-readable medium having instructions stored thereon that are capable of causing or configuring an adaptive beamformer having at least first and second microphones that generate respective audio signals that include speech and noise to perform operations comprising:
Dependencies are inferred from the claim text.