公开(公告)号：US11490198B1

公开(公告)日：2022-11-01

申请号：US17384983

申请日：2021-07-26

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Ning Li ,  Teja Buddha ,  Mohamed Sabet ,  Doug Olsen

IPC: H04R3/00 ,  G06F3/16

Abstract: A method for detecting wind noise incident on a single microphone may include receiving an audio signal indicative of sound incident on the single microphone, dividing the audio signal into a plurality of audio frames, and determining whether wind noise is incident on the single microphone based on a combination of a correlation metric between successive audio frames of the plurality of audio frames and a power ratio difference between a first power ratio and a second power ratio. The first power ratio may equal an amount of power present in a first frequency range of the audio signal to a total amount of power present in the audio signal across all frequencies. The second power ratio may equal an amount of power present in a second frequency range of the audio signal to the total amount of power present in the audio signal across all frequencies.